SCH’s niche is preventative healing—in other words, mitigating hits to lessen incoming damage. Not burst healing. That has never been its niche despite Indomitability being a good resource (it was actually super strong in HW, and one of the best AOE heals at that time). SCHs exist to mitigate the damage—not to provide raw healing or “emergency healing” like WHM or Diurnal AST.
Living Dead is a terrible tank cooldown to begin with that even AST has to waste more resources on than a job like WHM, who has Benediction (which it’s actually terrible design to lock a skill like Bene into LD—it really lessens the uses you could optimally put it towards, as you will always want it to be there for LD versus not there). Sure, it doesn’t suffer as much as SCH, but then again, SCH has never been meant to provide that kind of burst healing in a party setting. They exist to mitigate. As does AST when you put it in Nocturnal Sect—and you’ll notice that Noct AST lacks some of its raw healing that it has in Diurnal Sect (e.g., Diurnal COpp regens, CU providing a lasting regen, Aspected Helios regens, just a simple Aspected Benefic regen, which is an infinitely better use of A.Benefic’s GCD versus a shield outside of tankbusters—which are less frequent nowadays compared to in the past).
Your problem ultimately seems to be a failure in understanding how each healer is supposed to function, and instead thinking they should all function in the same way/have the same kind of raw power or niche. They all have their own niches that they fulfill: some mitigate, some burst heal. That is purposeful. It’s no doubt that all three could use adjustments—and SCH is not nearly as strong as it used to be. But as I said before, if double AST was such an optimal combination, you would see it in speedkills. Double AST has never been meta outside of late HW where it was parse meta to have two ASTs. And that had nothing to do with their healing toolkit, and everything to do with AOE Balance being a +10% damage buff.
Double AST cannot stack skills that are the same. Two Diurnal ASTs cannot stack regens. Just like 2 Nocturnal ASTs cannot stack shields (so just like 2 SCHs and SCH+Noct AST, if you’re running that for whatever reason). So hopefully you realize that, and are aware of it when making this comment. ASTs being able to stack skills relies on them being in two different sects—but even so, Nocturnal AST does not have answers or equivalents to some of SCH’s toolkit. And their resources are more efficient when being put towards regens. That has always been the case. Nocturnal Sect has never won out over Diurnal as the better sect, and there lies the issue with the hybrid design.besides sch cant even stack each skills while 2 ast can with all skills except cards . 2 whm can stack regens and dirunal ast can work with whm
Ultimate will likely still require shields to survive certain mechanics. So there will be those situations where I think double regen healers wouldn’t be a viable option for most groups—even with Neutral Sect. TEA’s healer comp is still WHM/SCH or DiAST/SCH. There are two comps I’ve found that are WHM/AST for TEA and the AST is DiAST, but they are also some of the fastest kills for the fight, and therefore the most optimized. Fact of the matter is that most Ultimate groups won’t be able to achieve such optimization—and while it’s been shown that double-regen is viable, it’s also likely unachievable by your standard Ultimate group. So they will still default to regen-shield combo, more than likely. Neutral Sect isn’t available for the 70 ones, so UCoB and UwU would likely still require the intended regen-shield pair even with all of our mitigations we have now.
Ideally, I would like for shields to still remain viable in both Savage and Ultimate. Not just in Ultimate.