If the aliens wanted to control our planet, surely they could do a better job than current "tactics".
For example, I control the ant population in my backyard. My technology is superior to theirs. They are amazed by my mother ship of a lawnmower. A
sighting of me does not control them, they run around all mental like.
Harsh chemicals do the trick.
But maybe the alien would enjoy watching us run around all hysterical like.