WHM Holy has a stun. It's Crowd Control and amazing for almost every reason you said it shouldn't be. It does not force anyone to use single target attacks. It works great in dungeons and it doesn't take away from raids/ boss battles. Scholar used to have a ton of crowd control from causing slow, silence, heavy, and magic damage/healing down through virus. Crowd Control can and HAS worked well in this game. The few examples of it we had on the healer role was great. Let's not pretend otherwise.