Probably the fact they reduced potencies on some heals and removed the healing bonuses from the sects. What do those sects even do, now? I think they affect... Aspected Benefic and Helios? Pathetic.
Hey SE, if you need an idea for how to differentiate AST, I'll give you one for free: Evade/Parry. If they're so steeped in predicting the future then letting folks anticipate and dodge attacks fits perfect.