[AlotOfReading]

I'm aware of them (as any archaeologist remotely interested in the early Americas should be), but they're not completely established parts of the chronology, particularly Santa Elina. People tend to be extremely conservative on this subject because there's such a long history of scams, pseudoscience, and unintentionally misleading results that ended up being false. That results in an extremely high standard of evidence sites have to meet.

However, that's a wildly different topic than what the grandparent comment is talking about. I'm interpreting their comment in a charitable light because interpreting it more broadly quickly gets into hyperdiffusionism territory.