Okay, now we're entering territory that's just straight dishonest.
First off, not everybody has a Prot Paladin in their group (because not every Pally can be a tank at a whim's notice)
Second, not every class has AoE, meaning even if you have a prot pally, you can't AoE them down
Thirdly, while some shit falls under the "bad design" category in TBC, you're throwing out the bathwater with the babies, some people enjoy that you have to actually have to plan out certain pulls, that you have to use CC, whether because the tank cannot reasonably tank them all or because they're doing too much damage.