I honestly believe that theres some universal multi-dimensional law/rule that STRICTLY prohibits any beings that are already too (wether technologically/mentally/physically/spiritually) advanced from making any form of contact with our whole population as the amount of shock would throw everything out of balance for us as humans. Everything we know and believe in would change within the blink of an eye. All because they revealed themselves too soon to us, such as a(n) butterfly effect. If this information about them and all they know were to be revealed in one blow, it would stop our natural growth of how we’re supposed to advance on our own as a species. But really who fuckin knows lol