You are rocking some sarcasm there while you don't realize that with Blizzard, the retarded stuff that is announced 6 months before an expansion is more likely to go live than not.
Realistically, druids should be getting cast time on mushroom + swiftmend , shamans should get cast time on healing stream and riptide or earth shield.
Look how brutal the changes are for paladins and priests, those instant casts happen to be their absolute best healing spells also. Keep in mind that those classes finished the expansion as bottom two healers. Meanwhile they give wild growth a cast time to balance. It just demonstrates how low is the understanding of game mechanics of devs.