I've seen that before, the "we've always been here" idea. I won't be surprised if earlier ancestors' fossils show up in New World contexts, just as they're showing up in various nooks and crannies around the world. When the continental shelf is more systematically explored, it will also be no surprise when the remmants of humans settlements are found, even extensive ones, even towns, cities, and seaports.
I agree. Especially if the Clovis Comet theory proves to be true.
No telling how much damage that even would have caused.