Are you comparing... Caster DPS to healers? The role which first task is the group survival?
And if you want to include BLU, it has a very long cooldown on its res. 5 minutes if I'm not mistaken. And finally, BLU is BLU, you can't compare it to any job. It has the best mitigation, the best healing, the best dps...
If you want to argue about BLM party utility, don't forget that currently MCH has Tactician on a higher cooldown and is often outshined by DNC and/or BRD in specific situations.
Be happy that you at least have the damages.
In prog it's worth but past it, the res is effectively useless.
