It already won't save a WAR from things like EO's one shot mechanics or extremely heavy hitting nuke busters in general. At least the healing helps where it can like dungeons or in content like Eureka and Bozja.
Might as well make Bloodbath healing per GCD then so it equalizes out. That won't miff the melee dps. If you want to only stick with Bloodwhetting then yeah it's just WAR targeting which gets really annoying to see them being seen as the source of all woes. Make it per GCD and wow, we can heal maybe 8k or 11k if we use our infuriates, that won't just be a complete nuke to the face.
Also people apparently do want WAR's damage nerfed because somehow it does more than DRK even though it doesn't do anywhere close to DRK's ceiling and all the damage depends on a per fight basis which either generally or at a max potential, favors DRK. So I'm not being all that dramatic really. As I'll keep saying, only reason the healing output makes it tower over other tanks is obviously the others(other than PLD) lack it, and healers just need a rework in general. Unless you want to tell me they're happy with dia>glare>glare>glare all day.