[AStrangeMorrow]

Exactly. There might be some traces of human passage dating 10000 years ago. But basically what we have is: surface-ish level construction, then a bunch of stones they interpret as old masonry but that is more likely natural, with deeper possible human traces as organic material, such as even a hunter gatherer that made a fire here one night. They use that to conclude to a paleolithic construction site.

Kinda like going to a European church, finding a bunch of stones and gravel under for 30m. Finding one silex around the same depth ans thus concluding European paleolithic people 10-20000 years ago were building complex edifices.