It's such a joke, how you were finally apparently considering to finally get rid of this feature that causes an eternal imbalance of casters, even at the optimal chance when a new caster is introduced. BUT you just decide that removing Resurrection on SMN (and Verraise on RDM for that matter) was not a good time now? What is going to change in 2 years that will make you change your decision? Just do it!

It's an actual joke that you think that removing resurrection from SMN "is against the identity of SMN". You know what SMN's identity is? Summoning monsters, not resurrecting people. And technically, if you cared so much about such small details in the identity of jobs, what about Paladin? Why doesn't Paladin have a Raise?

SE has constantly removed small pieces of identities from jobs over the years in pursuit to contest the meta (Their biggest sin is DRK in StB). The biggest change that you could make to help your attempt to fight class imbalance in the meta, is to remove the raises from SMN and RDM. Or if you're so insanely desperate to keep it, turn it into a role skill with 0 MP cost but a 3 minute cooldown and 5s cast time. Because that's really what it really should be, a singular attempt at rescuing an attempt, not a slave for raising.

Casters are not healers, as such they should not be capable of repeatedly raising, or raising at all.