Verraise as a utility skill is definitely overrated. Sure the red mage can dualcast raise a few party members, but then what? The red mage is then out of mana and can't DPS, and if that many people died in a raid setting, you're probably not passing enrage anyway. So for what it brings to the table (comparing it to summoner) it really either needs more utility to make up for its lower damage, or a damage buff, or both.
I like the idea of using up the black and white mana gauge for utility effects on paper, but my only worry there is that doing so will even further lower the personal DPS of a red mage since you won't be able to utility your melee combo or cast verflare/verholy as often. Seems like adding in the abilities will either require a higher ceiling to be placed onto the mana gauge or some other major overhaul to how the job plays.