Sure, it'd be nice, but considering how little we know about our own past, can we really blame them?

[So much information has been lost of their world- not just Lucis' buried origin story, but that of the world itself, the gods, Solheim. They don't even know how far back this world's history goes. It could be a similar situation.

Noctis starts poking around the room, looking for other exits in case there's an easier path for Cor to climb in; finding none, he pokes his head back out through the hole.]

Quit moving it for a sec, I'll help.

[He doesn't want it suddenly coming loose and squishing him while he's crawling around below.]