Well the new jobs were marred the moment they decide to make it play like another current job. AST specifically didn't really stand on it's own because of the half-thought Sect system. The best option is to really sit down and figure out how they want AST to play as a healer instead of you can play like a SCH or like a WHM. That's just bad game designing. At this point though I'm not sure if Sect swapping in combat would help or not but it would be an improvement.