Originally Posted by
Zeuq
Quite the contrary. Let's use FH as it currently exists (I'd use Heal, but I don't know the numbers on it). It has an average base of 2040 and a SP contribution of 80.57%. So, without those bonuses, a Priest with 6k SP (a guess at reasonable 85 levels, could be wrong) would heal for 6874. A Holy Priest would, thus, heal for 8592 where Disc would heal for 7599. That seems pretty far behind, but there's other factors at play here. First, they'll scale closer as SP increases. Second, Discipline has other effects like extra Crit from Renewed Hope, Grace, and Borrowed Time to take into account, and Holy has no such effects outside of very targetted ones in certain Chakra states; hell, Grace alone makes up a large chunk of that gap. Third, Disc has absorbs from DA procs, not to mention more chance for them from the extra Crit on Renewed Hope and the extra Crit granted from Int that isn't granted from Healing. Finally, DA procs may still benefit roughly equally from +Healing as a direct heal would, but I don't think PWS would scale at all with +Healing, not to mention that bonus Int would mean more Crit, leading to more throughput, and more longevity, leading to less need to gear for regen or more use of higher cost, higher throughput spells.
So, using that example, I actually think what we'd see is that, over the course of many casts, if all of the the absorbs and Crits are useful, Discipline will have superior throughput, but if they're not useful at all, Holy will. It seems to me that if you're mindlessly throwing Heals around, you won't get much effect from the bonus from Grace, or Renewed Hope, or even many of the absorbs, but a competent Disc Priest who can make effective use of those tools, such that a reasonable percentage of the Crits and absorbs are useful, then they ought to be not too far off from eachother. That isn't any different than how a good Holy Priest will now need to know how to appropriately manage his Chakra states or he could very well be stuck in the wrong one, and have +10% throughput loss on the spells he needs. And, of course, if it turns out to be that bad, a small adjustment to Mental Strength or Spiritual Healing by a few % or fussing with the base or coefficients of spells can easily bring them in line.
TLDR: I think it's easy to fret about it because the percentages are so much different, but it's a lot closer than it looks intuitively, and it's easily fixed if it's off. I wouldn't worry too much about it.