Why Isn't This In-game?

I was sitting here thinking shouldn't the Hulk have a passive effect that makes him immune to Radiation damage since he absorbs radiation and if not immune to it take reduced damage from it? Same thing goes for Gambit in terms of taking Psychic Attacks since his powers shield his brain. Also maybe for an alternate cosume Gambit could have a passive called Hypnotic Charm and basically it would have a chance for Gambit to "persuade" the enemy to either attack their teammate or not attack at all.