The alien stuff is very clever. It's a case of leading the sniffer dogs away from the scent by sprinkling pepper on the real trail.
Any theorist questioning space exploits or potentially doing so, will think twice when they start reading about aliens from other worlds buzzing us.
TV coverage of it was to ridicule it, which made people suspicious about space aliens. It's a classic and very clever.
It gets people saying, " ahhh, they're ridiculing those that say they were abducted or see space craft, because they are hiding the truth."
Roswell is a classic example. It plants the seed into people's heads that there really is space aliens.
You get rational people arguing about space and saying, " we can't be the only life on all these planets in our universe."
It brings aliens to life, almost.
By planting this seed, they are strengthening their hand that space missions are real, with the masses, just by this alone.
The reality of it can be entirely different.
It keeps up the Earth being a ball ruse, making us think that we know our own Earth in it's entirety and that we are just a piddly insignificant ball whizzing about a ball of fire.
The bitter truth, maybe, could be that the aliens we think are from space, are actually another race of human like people from another part of this Earth.