I mean physick can be dropped if it's not gonna scale with INT (though I would like to be able to shield anyone with Carbuncle in return), but I think SMN keeping resurrection isn't game breaking, especially as it sounds like Pictomancer will be between SMN and BLM in terms of damage.
I also like the idea of SMN continuing to partial support, which is a concept found in FF9 and FF10 where the summoners were also white mages.