Lucid Dreaming cooldown is awfully short these days... Can't totally remove MP across the board as things currently stand, but it is clearly becoming less important since Lucid Dreaming is already going the way of Diversion and Invigorate. This conversation will become more relevant as things continue to go in this direction, but for now I definitely don't see the harm in making an option to make MP invisible for all the melee DPS and ranged physical DPS, and warrior and gunbreaker. I don't think a single ability across all of those affects MP in any way.

All the magic jobs still use MP, of course, as well as paladin and dark knight. And paladin and dark knight's blood and oath gauges could probably take up that function. Not much you can spend oath gauge on, and only in increments of 50. Almost can be retooled as a binary switch if the max is 100 and you can spend at minimum 50. Could change it to a charged action, since it's basically at stages of 0, 1, and 2 uses, with nothing in between. Blood gauge is similarly not all that complex or that utilized, same 50/100 paradigm. Could just light up 2 dots like gunbreaker's "gauge".

So that would leave MP as purely for disciples of magic to see. And only magic users having MP, magic points, makes sense. Doesn't make sense for a dragoon or a monk's abilities to be magically based. And I guess that is also why none of their abilities interact with MP currently.

On a sidenote, I do appreciate gunbreaker being a tank that uses something other than a 50/100 gauge. Warrior at least has some stuff that uses 20 beast gauge, so that makes the 100 necessary to think about and more of a fluid resource.