Underneath all this is a recent phenomenon to recast Central/South American civilizations as 'ancient' and 'comparable' to other non-American civilizations. A lot of this is normal, on the level kind of research, but there's a significant amount of breathless hyperbole about it too. You can usually identify the latter by the language it uses.

This article does a lot of that ("Mind blowing!" "Challenges archeaological dogma!" "Mysterious"!), and it repeats something that's very suspect, even amongst conservative historians--it dates civilization in the area to "10,000 years old". Also, much of what's in these kinds of articles is not new, but simply repackaged content.