Again, that’s skill floor, not skill ceiling. I’m not talking about new players picking up a hero for the first time, because who cares. I’m talking about a hero’s actual maximum value and how hard it is to achieve in relevant (read:non-metal) ranks.
A backwards GA can get you out of shatter range, holding S can’t.
Neither is Ana. Managing GA is about as difficult as aiming with extremely generous healing hitboxes.