Originally Posted by
Cynfael
SCH and WHM are equally accountable for anticipating the flow of a fight; the only distinction is that WHM is punished more severely for failing to think ahead since they have less room for slop with their GCDs. Impulse healing is the exception, not the rule.
Also, if party members are consistently taking avoidable damage, the group is A) learning content; B) a casual DF/PF group; or C) drunk. E.g. I rarely find myself spending stacks to clutch heal except when one or more party members have no idea what they're doing, and that's typically a situation like ST where half the raid can take dirt nap while the competent half cleans up.
Besides, in any solo-healing situation where other players in the raid are eating large, avoidable hits at the same time that the tank is taking spike damage, the WHM will have more serious problems than the SCH's choice of blowing a stack on Lustrate for DPS to cover derps; while the SCH might be pressured to spend stacks and to spam Embrace <mo> on a non-tank, the WHM will still need to respect their GCD aside from blowing Benediction. This is why I find solo healing a solo tank in T7 much simpler as SCH since it's easier to cover DPS' mistakes while maintaining necessary heals on the tank.
Outside of solo healing, Lustrates on the raid are even less necessary since you have a healing partner, and if it's a WHM, they are probably healing raid damage quickly and efficiently enough that you don't need to worry much.