Nah, "changing appearance mid-game" is in no way an "absolute priority" among the things this game needs to do better.
Hell, one could even argue that probably it shouldn't need to be a feature at all, since you are supposed to decide who/what you are at the beginning of the joruney and not change your mind every 30 minutes, but yeah, I get it... People who constantly whine for convenience at expenses of commitment always win these battles on the long run.
It's one of the most requested features so I don't care what you think. It's an RPG. It is inconceivable that you can't change your Hairstyle or makeup in a 100hr playthrough.
I can only agree that we shouldn't be able to alter our Race (though the Shapeshifter Mask from the Deluxe Edition does EXACTLY that, and it fully works in-game).