If you don't understand the enmity changes, you probably never did Savage as (or with) an AST.

A while back AST had the potency of their heals buffed to match WHMs, meaning their aggro gen (via heals) also went up. However, WHM has an aggro dump (Shroud) whilst AST doesn't (LA's version isn't the same), so that needed to be addressed. A Quelling Strikes-type ability encoded into their Sects is a nice way to address it without the risk of making AST more of a WHM clone.