General Discussion

In the real world, some strange man physically groping you in an elevator is a very dangerous assault if you are a woman. You have no idea what his intentions might be. Women, in general, are at a physical disadvantage in situations like that. Fortunately, she has apparently had some training in self defense. She used it to prevent any further assault and then exited the elevator ASAP.

She immobilized him and went one step further to make sure he could not attack her again. Perfectly justified in the circumstances. She escapes unharmed and he gets an object lesson through learning that not all women are helpless and weak. Perhaps, as you suggest, he will learn from this. I doubt it, though. Instead, he'll probably use more immediate force the next time.

I'm surprised that anyone is attempting to blame her for her actions. Screw that!