A suspension of disbelief applies to the idea of the existence of superpowers, not to the sudden banishment of the laws of physics or the behaviorism of children. If you want to get sucked into a fantastical world, the characters have to be believable. If you want to stay and join, fine, but what the hell, is it okay to metaphorically enter someone's house and condescend to everyone? "Nobody here can grasp my concept of fantasy", oh my gosh, comedy gold.