I think the whole concept is now pretty solid, since we see already in mixed Bodrogkeresztur-Salcuta context, like from Urzizeni, a strong shift towards Gumelnita, which must be attributed to (first?) Salcuta migrants in the vicinity of this (still) Bodrogkeresztur dominated settlement.
The shift should be even more drastic in actual Salcuta dominated Hunyadihalom–Lažňany horizon/Scheibenhenkel context, which, going by latest C14 callibrated data, was the direct successor of many Bodrogkeresztur settlements.
On top of that, there are a couple of authors which already pointed to Hunyadihalom–Lažňany horizon and Salcuta directly being one of the main, if not the main genetic contributor to Cotofeni - note that Hunyadi-Vajska is largely equivalent to Hunyadihalom–Lažňany, because Vajska is a crucial site for the Salcuta influence on Bodrogkeresztur:
So Cotofeni emerged exactly in the area of the heavily Salcuta shifted Hunyadihalom–Lažňany horizon and Salcuta proper territory.
Tasic also explains the difference to the related Baden-culture, which emerged, by and lage, from Tiszapolgar-Bodrogkeresztur amd related Pannonian core groups (unmixed with Salcuta):
For Eastern Serbia a hiatus between Salcuta and Cotofeni being sometimes proposed, which would suggest a kind of "back migration" of Salcuta-related elements from the Cotofeni sphere to some areas, but in any case, in a lot of places there is Salcuta followed by Cotofeni, like ZLOTSKA PECINA NEAR BOR (EAST SERBIA) Stratified cave-type settlement
Source: https://dais.sanu.ac.rs/bitstream/id/44576/bitstream_44576.pdf
Since we find near 100 % ANF outliers in Urzizeni, in the mixed Bodrogkeresztur-Salcuta context, we can assume that if anything early Salcuta was indeed even more ANF-heavy than Gumelnita, but overall similar to Gumelnita, which being also supported by the paper publishing the samples, since they could model some outliers with just Gumelnita as a source.
We have now a clear reason as to why Cotofeni was indeed different from the Baden culture: Because of the strong Salcuta-tradition which got injected into the East Carpathian sphere. And this is not just based on archaeological material, which already suggested so, but also on actual samples from the Bodrogkeresztur site of Urzizeni, in which we see this shift in the direction of an ANF/Gumelnita-like people.
If we add to that the extremely high likelihood of not just E-L618, but most specifically E-CTS1975 being present in Gumelnita (with two data points, one directly from Varna, the other from Myceaneaen Greeks in Crete), we now have a suggested path for both E-V13 and the ANF-rich ancestry which leads to Cotofeni. And this is so important because Cotofeni is now not just a better fit archaeologically for the later Thracian cultures, but also genetically.
Because Gumelnita and the Salcuta shifted samples from Bodrogkeresztur are way better fits than the Ezero-type samples, with its core coming from Horodistea-Foltesti and looking like the EBA Tell Yunatsite samples.
The shift should be even more drastic in actual Salcuta dominated Hunyadihalom–Lažňany horizon/Scheibenhenkel context, which, going by latest C14 callibrated data, was the direct successor of many Bodrogkeresztur settlements.
On top of that, there are a couple of authors which already pointed to Hunyadihalom–Lažňany horizon and Salcuta directly being one of the main, if not the main genetic contributor to Cotofeni - note that Hunyadi-Vajska is largely equivalent to Hunyadihalom–Lažňany, because Vajska is a crucial site for the Salcuta influence on Bodrogkeresztur:
It is not hard to establish the relative chronology of Cernavoda III-Boleraz. Most archaeologists agree that in the east it succeeded Cernavoda I (type Renie II), Salcuta IV, and Gumelnita (Karanovo VI); in the central parts, the Yugoslav Danube Basin, and most of the Pannonian Plain, it was later than Bodrogkeresztur, Hunyadi-Vajska, and Balaton-Lasinja I-II; in the north, it followed the final stages of the Lengyel (Ludanice) culture. Through out most of this area it was succeeded by the Baden culture, except in the east, where an early stage of Cotofeni (Cotofeni I) emerged. In absolute terms, and on the basis of uncalibrated C-14 dating, Cernavoda III-Boler£z would cover the period between 2850 and 2700 B.C. (data provided by the Berlin and Groningen laboratories).152
So Cotofeni emerged exactly in the area of the heavily Salcuta shifted Hunyadihalom–Lažňany horizon and Salcuta proper territory.
Viewed throughout its extent, the Cotofeni culture may be described as a phenomenon typical of the southern Carpathians and the Danube Basin. The culture affected the area of Transylvania, Marumures, the uplands of Banat, Oltenia, Muntenia, northwest Bulgaria along the Danube (Magura, Vidin, Vraca), and northeast Serbia.
Tasic also explains the difference to the related Baden-culture, which emerged, by and lage, from Tiszapolgar-Bodrogkeresztur amd related Pannonian core groups (unmixed with Salcuta):
The question of the origin of the Cotofeni culture should be viewed within the framework of the emergence and expansion of Boleraz-Cernavoda III and, for a somewhat later period, of Baden, as well. Numerous elements of Cotofeni pottery, especially as found at Romanian sites, derive from the style of Cernavoda III: the use of plastic bands, a rather coarse version of the herringbone motif, and broad channelling. This kind ofpottery from Romanian sites (Petresti, Brateiu-NiSiparie, the earlier layers of Locusteni) 209 is dated by P. Roman to phase I of the Cotofeni culture. This phase is also characterized by the complete absence of Furchenstich decoration and of the motif of cuts organized into chequer patterns in Kostolac manner (Herculana-PesteraHotilor, Girbova de Sus).210 The presence of BolenHz-Cernavoda III elements in the early phase of Cotofeni does not indicate, however, a direct evolution. The Cotofeni culture probably came into being as a result of the very same process which gave rise to Baden in the Pannonian Plain. Only their autochthonous bases were different: in the case of Baden, the line followed was Balaton-Boleraz-Baden, while the basis of Cotofeni was a combination of Cernavoda III and Salcuta. In the context of the other contemporaneous phenomena in the Carpathian-Danubian-Balkan region, the relative chronology of the Cotofeni culture would be as follows: phase I of P. Roman's coincides with the emergence of the Baden culture in the Pannonian Plain (in the Serbian Danube Basin at the time, Boleraz-Cernavoda III settlements were still in existence here and there: Vajuga near Korbovo, Brza Vrba near Kovin); Cotofeni II would be parallel with the further development of Baden (classical phase) and the appearance of Kostolac elements; Cotofeni III was contemporaneous with the mature Kostolac culture and the first Vucedol settlements in Srem and Slavonia.211 It is hard to say what exactly happened in the Serbian Danube Basin and eastern Serbia after the Cotofeni culture. The next settlements there belong to the Verbicioara and Vatin cultures, but this does not exclude the possibility of a temporal hiatus between the two cultures.
For Eastern Serbia a hiatus between Salcuta and Cotofeni being sometimes proposed, which would suggest a kind of "back migration" of Salcuta-related elements from the Cotofeni sphere to some areas, but in any case, in a lot of places there is Salcuta followed by Cotofeni, like ZLOTSKA PECINA NEAR BOR (EAST SERBIA) Stratified cave-type settlement
A. The earliest Bubanj-Salcuta culture settlement with remains of house floors, hearths, and working surfaces was best preserved. The importance of this horizon was its pottery, abundance of antler tools, flint implements and particularly copper objects (awls, pins, flat ax). The pottery was decorated with carving, channels, white and dry red painting, and also black burnishing. However, along with this manner of decoration, pots with Sclieibenlienkel type handles appear, which could suggest that we deal here with one late phase of the Bubanj- Salcuta culture. B. Above the previous horizon, the settlement of the final Eneolithic was formed. According to its pottery (carved lines, lens-shaped plastic ornaments) this settlement belongs to the Cotofeni culture with elements of the Kostolac culture style (Furchenstich decoration) . Alarge number of tools, predominantly made ofantler, was also found in this horizon.
Source: https://dais.sanu.ac.rs/bitstream/id/44576/bitstream_44576.pdf
Since we find near 100 % ANF outliers in Urzizeni, in the mixed Bodrogkeresztur-Salcuta context, we can assume that if anything early Salcuta was indeed even more ANF-heavy than Gumelnita, but overall similar to Gumelnita, which being also supported by the paper publishing the samples, since they could model some outliers with just Gumelnita as a source.
We have now a clear reason as to why Cotofeni was indeed different from the Baden culture: Because of the strong Salcuta-tradition which got injected into the East Carpathian sphere. And this is not just based on archaeological material, which already suggested so, but also on actual samples from the Bodrogkeresztur site of Urzizeni, in which we see this shift in the direction of an ANF/Gumelnita-like people.
If we add to that the extremely high likelihood of not just E-L618, but most specifically E-CTS1975 being present in Gumelnita (with two data points, one directly from Varna, the other from Myceaneaen Greeks in Crete), we now have a suggested path for both E-V13 and the ANF-rich ancestry which leads to Cotofeni. And this is so important because Cotofeni is now not just a better fit archaeologically for the later Thracian cultures, but also genetically.
Because Gumelnita and the Salcuta shifted samples from Bodrogkeresztur are way better fits than the Ezero-type samples, with its core coming from Horodistea-Foltesti and looking like the EBA Tell Yunatsite samples.