4.0 decluttered the battle system by dropping Stoneskin, which makes sense when it's just cast at the start of a duty and quickly falls off the tank, with dubious benefit for the party.
But then why do we still have Protect? It's essentially a permanent stat boost. The party is expected to have it on them at all times, and it's essential to healers since combat difficulty assumes everyone has it.
But if you have it near-constantly, why make it a spell at all? It doesn't provide special protection, because you have it constantly. On the contrary, it only harms you: it can expire mid-battle, and the few seconds after revival where you lack it makes you more vulnerable on top of death sickness.
It feels like it only exists to give healers a reason to exist. But they already have one: healing!
Couldn't its effects be baked into character base stats and replaced with something useful? Role command slots are precious and Protect wastes one right now.