Why would time suddenly tell? In a world where history has been completely removed and replaced, nothing is true. How would it suddenly become a known? For what purpose?

Reasonable questions.

I suggest instead that all of this like religion are manufactured by criminals that are seeking means of control over other people, selecting anything that works.

Quite possible, to push a simple message - "Resistance is futile, that higher beings are scary and omnipowerful, don't even try to escape Earth authorities"