Obviously, they wanted to make good on the advice of "make sure to regen and medica 2 the tank every pull " that is/was always weirdly prevalent. Now you can do so at an actual gain.

Poor attempt at humor aside, my biggest disappointment with White Mage in Endwalker is that they didn't do a single thing about Lilies. No increase in potency for Afflatus Misery to account for the increased Glare potency, no new skills tied to the Lily system in general, no way to interact with it at all outside of actual Lily usage. I would've loved something simple like making Glare or Holy accelerate Lily generation, or a new, powerful healing skill that maybe cost two Lilies which would nourish the Blood Lily by two thirds as a way to reward patience and good usage of your resources.

Otherwise, in practice, it's a... functional Job. In between forced intermissions and playing in an unoptimal and uncoordinated setting of random/pug co-healers, I'm not really feeling the theoretical MP shortage, and I never feel like I can't handle the outgoing damage. Though I will admit some boring fights like the first circle of Asphodel makes my MP feel dangerously low because even the meager oGCD kit of a White Mage covers the instances of damage intake there, and you never have to interrupt your Glares pretty much.