I’m fine with Mercy having a low skill-floor, but I stopped playing Overwatch because they lowered Mercy’s skill-ceiling significantly; first with the rework, then even more with the latest nerf. Rez is trivial and so is Valkyrie, and how you move and prioritize your heals are the only factors that differentiate between a good and a bad Mercy player now.
I wish Mercy had a higher skill ceiling and I’d be happy to sacrifice both rez and Valkyrie to get it…