I believe it's a compelling argument. The out of Africa theory never explained the differences that are the various races of mankind, but if there were several migrations over the millenium, then this would account for these differences very nicely.
Having watched both sides of this argument for years, I find it fascinating not just for the science, bur also for the way the scientists on both sides of the issue have behaved. I know enough not to stand between the two sides at times...you might get hit with a stray missle!
The science will be what the science is - but the passion both sides have displayed is interesting in its own right.
Someone, someewhere is working or will be working to tell us why this researcher is wrong, I am sure.
What needs explaining are how tiny the differences are; there's more genetic diversity in the average Chimpanzee troupe of a couple dozen Chimpanzees than in the entire human race.,br>