The other option is to have all AI 's that get stickied, run into you. And than the game is automatically hard. And people would start rage quiting. And making bad reviews. Like the grandes being worthless. Since you couldn't use them, unless you had cover. So AI's are probably gonna stay dumb to a degree.
Halo did a good job of having some smart and some dumb ai. the little grunts were always a little dumber in their reactions than the other enemies