The idea is to just completely get rid of damage boost, and replace her alternate fire with the pistol. No weapon swapping, and no screwing up break points for other characters. Maybe she could even shoot while healing simultaneously. Obviously they would have to tweak her animations and stat numbers.
I am sorry but this is so hilarious lol. Maybe in terms of gameplay, it might reduce her passivity I guess.
Have you played mercy? She is not passive.
Just because she does not damage you does not mean she does not do anything