There is a huge difference between 28% and 47%, it is a very big deal. The pre-Roman people in the site of Viminacium are Celts and Illyrians, many others settled there after the city's foundation. 1/3 E-V13 is a reasonable percentage that we'll find in many areas of the Balkans, but it doesn't imply anything more than the fact that even in a huge multi-ethnic city a good part of the population where natives of the Balkans. E-V13 decreases north of Viminacium, but it probably remains the same in Dardania.
Exactly what I said: the Moesi didn't exist. Homer doesn't mention any Balkan Mysians. The Mysians of Homer are a west Anatolian people who had nothing in common with the Balkans. Their name was transplanted in the Balkans by the Romans.
DILYANA BOTEVA
Society and Myths: How was the Name of Moesia Invented?
https://www.academia.edu/48895776
The strict chronological synopsis of the contemporary information (Table 1) could, in my opinion, help find a plausible solution as it shows not only when the name of the Mysians/Moesians appeared in the region. Thanks to this synopsis it becomes also evident that a local ethnonym surprisingly disappeared despite being widely popular in the ancient writings (including those reporting the military operations of the provincial governors of Macedonia during the first half of the 1st century BC and shortly after the mid-1st century BC). I am speaking about the Dardani, whose name has gone through a dramatic metamorphosis in the Roman literature: up to the mid-1st century BC they are known mostly as antagonists of the Roman army (Table 1, nos. 3, 4, 8.4 and 8.5).
At a certain point the ethnonym of the Dardani vanished from the contemporary literature of the late 1st century BC. After a short hiatus it re-appeared in the texts of Roman intellectuals as a synonym for Trojans and accordingly as an element of the Roman genealogy which starts with the Trojan Aeneas.
Rome’s unwillingness to speak about the Balkan Dardani as Roman enemies is attested for the time postdating 19 BC (but most probably actually predating 19 BC by several years), needed an adequate substitute for the politically unfitting ethnonym.
In this context it is necessary to try to find out who and when substituted the troubled ethnonym of the Balkan Dardani with the Mysi/Moesi.
The decision — made almost certainly by Tiberius, — to label the lands of the Balkan Dardani with the name Mysia/Moesia could be explained by the fact that the legendary Dardani were connected with Troas in Mysia in Asia Minor which was part of the eastern territories ruled or dominated by Rome; the same was true also for the Balkan Dardani who occupied lands lying relatively close to Asia Minor.
The decision — made almost certainly by Tiberius, — to label the lands of the Balkan Dardani with the name Mysia/Moesia could be explained by the fact that the legendary Dardani were connected with Troas in Mysia in Asia Minor which was part of the eastern territories ruled or dominated by Rome; the same was true also for the Balkan Dardani who occupied lands lying relatively close to Asia Minor.
To summarize: A strict chronological synopsis of the contemporary information indicates that the name Moesia appeared most probably as a result of the myths, advertised persistently within the Roman society under Augustus. The need to choose an acceptable name for the region in question was actually faced by Tiberius, who had to find out how to cover the politically incorrect ethnonym of the Dardani, who were both a traditional enemy of the Roman governors of Macedonia in the Balkan Danubian region, but also considered to be identical with the Trojans, the Roman predecessors in Asia Minor. Thus, emperor Tiberius introduced on the Balkans a toponym from northwestern Asia Minor, Mysia/Moesia, first attested in the Lower Danubian lands only in early AD 16. Accordingly, the initial territory of the province of Moesia covered the lands of the Balkan Dardani and the adjacent region to the north as far as the Danube.