Okay, can't help this, grew up on Star trek.
Maybe the alien life forms are simply trying to comply with the prime directive. No interference in the lesser life forms normal development.
, Who knows, those poor schmucks which got caught on video may well be facing court martial.
I am with you. The Universe is simply too big for us to be the only 'intelligent ' species out their.
And the fact that Space is so damn big means unless a race has some super uber warp drive, they will never find us.