R1b-V88: out of the Balkans and into Africa?

Late last year I tentatively suggested that R1b-PF6279/V88, also known as R1b1a2, and formerly as R1b1c, may have entered Africa from Iberia, rather than from the Near East as is generally accepted, because of its presence in an Early Neolithic sample from Iberia (see here).

This is now looking a lot more plausible due to the recent discovery that the eastern Balkans was home to Mesolithic