This study says "In the Picenes, two main Y haplogroups are observed, namely R1-M269/L23 (58% of the total) and J2-M172/M12 (25% of the total)", R1-M269/L23 clearly relates to non-IE Etruscans, what do you think about J2-M172/M12? It is really meaningless to say the main haplogroup of both IE and non-IE people in Italy was R1-M269/L23 and those who had J2-M172/M12 were an unknown people!
And what they say is factually correct. But, are they making "conclusions" from those numbers ? I hope not, for their credibility.
Anyone drawing conlusions on ratio based on so few samples should only pray for one thing : "Not falling on someone like me as a referee for your paper".
What I think about J-M102 ? I think it is a beautifull haplogroup, and I prefer him under the name J-M102 rather then J-M12 (for purely "cosmetic" reasons regarding the name).
Then J-M102, was a mightly man living some ~27600 ybp, thus roughly at the time of the begining of the LGM.
As many others, I don't see the point about using broad clades (when we have better) regarding samples from Italian IA (particulary when the migration history of sub-lineages are significantly different).
You might aswell speak of "F" or "CT" samples using such terminologie.
This sample is J-L283 at least ... regarding the phylogeny they propose in the paper, this sample is likely at least J-Z585.
But, even that, it is not sufficient to completely analyse the meaning of the samples.
Because there is a big deal on J-L283 diffusion area when passing (or not) the J-Z615 and J-Z597 levels.
On a general note, many things could be said on this topic, but it is not the place.
Most likely, being on the Adriatic coast, these sample are some J-Z597 lineages (with many options by Italian IA).
Nothing spectacular for the region.
J-L283 was a minor lineage likely unable to carry its own specific language during his first steps in Europe.
It started to widely diffuse with J-Z597 and the later J-Y15058 and J-Z638.
Also, I don't think Y-DNA have to be bijective with languages. If there is correlations, it is nothing more than that. Migrants most likely take the language of the host culture. And J-L283 looks by all means like a migrants for its early stages in Europe.