I think a big Problem is the Skill Lvl of the Playerbase.
While good Players heal every Content easily with barely using GCDs on healing spells, other Healers struggle rly hard and can't heal enough in the same content.

So it's a bit hard for SE to make Content "healing intense" when 97% of the Healers wouldn't be able to clear it.
Think about o12s or the Ultimates.
Must of the healing can be done by only using the oGCDs and some GCDs here and there. But who can rly do that?


So i think it's a good choice of SE try to overthink how healers should work in this game.
It would be good for everyone, if SE can make the gap between good and bad players smaller, before the add a new healer.