i already agree it needs more reason to actually play the job. I am only usually entertained on blue mage these days when me and a friend or 2 go through some content to hunt some missing spell without a carry. Unfortunately, as you say, its pretty ineffecient to do it that way.
they basically need to give blue mages a reason not to be carried.
more places to use blue mages
and some form of longer term content where you can go have fun using blue mage and gain some sort of benefit.
specifically though, i was saying they want to seperate it from normal play, because it can do broken things.