I read the link and was surprised to find so many signs common to so many places on Earth---so many civilization.
I cannot comment other than it seems to be an accurate, summation of evidence. I would only criticize one statement and that is that "ah" is theorized as the beginning of language about 10,500 years ago. His impression is understandable, but language surely goes back at least 70,000 years ago---probably even earlier. For sure, CroMagnon man had language. We would not have culture but for language and culture goes way back into our very origins in Africa.
charles