Very interesting. The east-west gradient in Iberia kind of proves that this cannot be an artifact of the Moorish period, where we would expect a north-south gradient. Also, we see east-west gradients with several Y-Haplogroups in Iberia as well, in particular E1b, but to a lesser degree the tendency towards a match is also with J1 and T.
I think, the conclusion is that we definitely need Neolithic Y-DNA from Iberia. This might definitely solve the origin of some European Haplogroups, and verify the possibility that these entered from North Africa during the Neolithic.