I do think Maciamo should have included the Busby L21 hotspot in Alpes de Haute Provence, but if you read his post (#4 in that thread at Eupedia), he dismisses it because there were only 31 samples. Sure, it would be nice if Busby had a thousand samples from that region, but I think 31 is a fair sample size.
Besides that, one of our earliest French R-L21 Plus Project members has ancestry in that region. I find it odd that he turned up and then, a couple of years later, Busby finds a high frequency of L21 in that area of France.
But that is a small thing to quibble about, I guess. The map is pretty good otherwise.
I agree. 31 sounds plenty for one small region. I think when he says it wouldnt make sense for an L21 hotspot there he is falling into preconceptions. He clearly believes there should be some sort of neat contouring from a peak in NW France. If you do include L21 in SE France as per Myres then it gives the impression that L21 may have had a hole punched through the middle of it a U152 expansion. I think the map would have been better if he showed the SE French peak.