thats the problem, specs have been losing survivability xpac after xpac and the game is becoming hyper damage/mongo
healers whine about how awful it feels to heal, when part of the issue is how incapable dps specs are at taking care of themselves
the more you take away from certain specs ability to self heal, or off heal others, the more stress you put on the healer to do so instead, leading to complaints about even micro cc.
Healer shouldnt even be called healer, it should be renamed to support and most healer specs having less healing and more support based utility so DPS specs can have their flavor back.
For ret that means flash of light and wog actually healing, For DK that means having deathstrike heal again, For warriors it means having ignore pain with die by, or bloodthirst/enraged rebuffed
you get the point, But the more you remove the DPS specs ability to do these things themselves in their own flavorful way, the more stress you directly put onto healers to make up for it. Most high end pvpers dont struggle to bad with that, but for the casual playerbase this makes the experience very tilting