Before we get too into this, it's very important to note something. Right now, after the buffs, AST total raid contribution is very good and can be considered on par with the other healers. As ilv scales so will ASTs contribution to the raid.

The reason theirs so little ASTs clearing right now is because statics already settled on their comps before the raid hit, and it's normally a very bad decision to change suddenly because of buffs on patch day.

Don't look at this number and think this is an indication of how strong AST is right now, it simply is going to take time to pick back up. Unfortunately though, I can see SE overbuffing again just to get their player numbers up.