As far as I know, Savage was NOT created with Healer DPS in mind, and maybe no one expected WAR to pull that much DPS.
That said, yes, PLD now are just kind of a weight in Savage, since (and I talk as a raiding SCH), there's no problem healing the other two tanks if they know how to mitigate a tank buster (eg using Inner Beast at the right moment), and those other tanks can help with DPS checks in ways PLD can't.
Hell, there was that glorious time a tankbuster did 0 damage on the DRK, because I used virus and the Machinist used Rend Mind, and we're usually on max 6000 damage on DRK and max 10k on WAR, and that's even almost too easy for healers.