To be honest, all I really demand from AST is stars (I'm a very simple person). From there, if they really want AST to be a luck-based job that provides a "random" benefit to the party, I wish they would just double-down on that and let them provide random benefits to the party (like they used to), irregardless of whether or not other players care for the effects.

Most of all, though, I wish they wouldn't design the job for all the other jobs' benefit.