Keep in mind group make up too, good lord was it rough trying to go through WP with 2 average geared monks and a tank that still wanted to speed pull regardless, I'm sorry but they don't have much in the way of AoE, the extra couple of minutes to allow them to single target will make the run go faster than if we run out of cooldowns and we all die. There's also time between pulls, and they extra length it takes to down each pull is longer anyways with no aoe and MP regen.

Also... all you bored healers, if you're so bored of healing, do something else in 4 mans, tank, dps, or just don't do them, if you are bored of a role do another one or go do something else.