Yeah. IMO, the only real issue was The Alchemist, way too powerful cleanser by removing all (also silver) buffs and granting invulnerability.
Changing that would have been balancing enough.
DDE needed no nerf in my book, also blue Lilith was not too bad on her own. Hallowed Eddies infinite turns maybe, but all of that was not an unsolvable problem until Alchemist got superpowered cleansing.
Now DDE is just above average, but not great. WHich is what a 4* should be maybe?
Nevertheless, I find myself not playing him as much now.