With the resources they have, they could have prevented anything from reaching large audiences.

The Streisand effect is a phenomenon that occurs when an attempt to hide, remove, or censor information has the unintended consequence of increasing awareness of that information, often via the Internet.

There is not that much the people in charge can do, all they have is the power of illusions, and making people believe in fairy tales like space wars. Usually all they can do is mock anyone stepping outside of their programming, and people who still believe what they were taught at school might go along with it.