Yes but those classes also GAINED the ability to remove magic (sans pally who got it back) with the 4.0 talents as long as they were healing spec. Pallies lost the ability to remove magic off friendly targets all together unless they were holy. They didn't lose the ability to cleanse friendly targets while keeping the ability to cleanse themself. THAT is where it doesn't make sense. Whether you can see why it was "needed" or not doesn't change that it makes absolutely no sense. Priests suddenly didn't become OP because they were able to remove sheeps off their healers if they were shadow the same way that ret & prot pallies weren't OP in Wrath because they were able to cleanse sheeps off their healers when they had the ability to remove magic off friendly targets.