Concerns about " Getting rid of unused and ineffective actions"

[Kaurie]

If an action is used even later, like Fire, it isn't an "unused and ineffective action" - as stated, it's useful for stuff like Firestarter. So there's no chance of it getting the boot.

I'm...not entirely certain what you mean by "the benefit's in Cure 3's cast time and speed". Cure III is the slowest Cure spell, having a 2.5s cast time, compared to Cure I and II's 2.0s cast time. It's also flat out worse, with a lower potency and the only benefit being a 4y radius...which is only a bit larger than melee range. You might as well cast Medica, unless everyone in need of healing is packed together. Unless you meant regular Cure? But then the advantage would be a lower MP cost, not speed...

Cure III is godly in very niche circumstances.

For example, in A4 when you had to spread out far from the other heal and away from the group, and the tank would be constantly hit with splash damage on the melee. Cure III is meant for that. It's also very useful in T11. It's also a much higher potency than Medica, making it better for topping up the team after a huge aoe (assuming you have a coordinated team that stacks up for said attacks).