Is there a reason Ast cant have the sects?

[MintnHoney]

Because the people on these forums don't seem to think it can be balanced or done in a meaningful way and have decided that AST with sects was the devil and the reason why healing is the worst role in this game, meanwhile Squeen can't be bothered to think on what to do to improve healing for more than 10 minutes and resorts to potency bloat in order to establish a sort of balance between the healers while they promise to spend more time "fixing" the "state of healers" (which most players interpret and hope to mean that they'll adjust the game to fit their preferred style of healing, only to be further disappointed when it doesn't or when they go in the opposite direction).

Hyperbole aside, Squeen had issues trying to balance the different stances while also balancing ASTs utility and personal agency. Diurnal was the one sect that was used most often and decried the least, so that's likely where the decision to scrap Nocturnal over Diurnal came from, when they decided they wanted to have 2 styles of healer.