Why doesnt each class get their own limit break effect?

[Millimidget]

So you're in combat right and the gauge just filled up.

You ask your summoner to LB.

As soon as the summoner clicks his LB, the BGM changes to the most high pitched J-rock you ever heard, then the view zooms out for everyone in the party, all the way to show the planet we're on. At this point there's a voice-over shouting "HYAAAH!" while 5 burning suns merge in a HUGE explosion that forms a gigantic robot dragon with blue thruster rockets. The dragon stretches and screams, then transforms its head into a Gundam style laser cannon that charges up and fires at the LB target. The beam is wider than the planet and fires off missiles that circle the main laser. When the beam hits, the impact zone becomes an anti matter globe that inverts and tears the entire universe apart. Finally there's a sequence of mysterious laser grids on screen for a few minutes.

The LB deals 1300 damage and combat resumes.

Clearly missing that Final Fantasy feeling.