I was also skeptical, seems there’s a lot more to this story. Not that they didn’t disappear and reappear, but the spread of them isn’t as straightforward as we thought.
That's basically the same claim. This is saying "the europeans brought them, and they spread around faster than we thought". Which is interesting and fine, but that's a far cry from the above claim of "actually, that ten thousand year period where they appeared to be extinct never happened and they were around the whole time".