It wasn't intentionally buried.
I know nothing about the sites. I figured I'd share to see what Poalers know about it.
Göbekli Tepe and Easter island people are connected and actually used the same text, and have the same rock carvings. Both places were destroyed by a natural disaster, that happens continuously throughout history, on a fixed timeline.
...on a fixed timeline.
I noticed something like that when I glanced at the article. It suggested that the people buried the sites to preserve them because they knew an event was coming.
I thought to myself, "Bernardo, your fellow autists at Poal would love this."
Here's a short informative video from Archaix a chronologist if your interested. He has a few and he is a deep researcher.