Originally Posted by No Ticket
They're letting us know what they WANT us to know.
I think exactly the same. HovitosKing said it first. They want to "throw us off the true plot".
And, sincerely... I don't like the aliens/"Chariots of the Gods" idea too. Maybe it's an interesting theory, an alternative way to explain some of the mysteries in the ancient history, but... I think it's a little too odd to be truly considered.
And it definitely doesn't fit the Indy universe at all, in my opinion. Especially if they want to apply it to one of the ancient artifacts Indy has already found in the prequel trilogy (the Ark, for example).