Rather then put AST back into the dark ages, why not just buff WHM instead? On my main account, I've played as WHM since 1.0 and it's always been pretty boring. This is because the job itself across most of the FF games is also not very exciting either. Just as other classes have evolved in this game from their core elements in the previous titles, WHM should do the same. SCH and AST have their uniqueness outside of healing, and now WHM needs that same trait. Why they didn't change this for Heavensward is beyond me. But AST is a fun healer to play because of it's healing/buffing mechanics. SCH is fun to play because of the pet/DPS mechanics and flexibility. All WHM has sadly is healing. They've needed something well before AST was released.