Which healing job are they gonna gut for Sage?

[Driavna]

Classes in this game is honestly way to homogenized. If DPS were to be mapped across an axis of proc vs fixed rotation, nearly every job ends up far on the fixed side.
And for healers it's this... either regen or shield...

It feels like the devs are afraid to branch out and try more niches.

I disagree with you. Classes are the way the are now because of how the game is played and probably the player base too. As long as you have duty finder all combination of classes need to work.