The whole utility of defensive CDs/raise regarding BLM vs SMN/RDM is the same situation we're seeing with PLD/WAR vs GNB/DRK.
PLD/WAR have more party utility and gives more party survivability which is nice during prog because if you go for a fast clear you're definitely not as geared as the group getting p8s on the 6th week.
RDM suffers the same than PLD. They have raise like SMN. They have Magick Barrier which is fantastic in a progression scenario. But once you've cleared, you can forget the button and not need it anymore. Suddenly, Magick Barrier loses value. Only content it remains really strong is in Ultimate fights which isn't accessible to everyone.
Raise, however, can always be good. While casting raise does reduce your DPS. It did help my group get a reclear on P7S when both healers died and it took me 5s to raise both of them; just in time for the last party AoE and clear just fine. Unless raise becomes a Caster role action with a cooldown of 2 minutes or so; I am to believe RDM/SMN do need to do 2%-3% less DPS than BLM. In a hardcore week 1 prog mindset, favoring BLM over a raise caster is literally throwing for your group.
Regarding Black Mages, the problem with them is the Crit/DH change didn't buff them but it buffed a lot of melee DPS so they're about 4% behind melees (with the exception of Reaper). I honestly believe BLM is fine. The issue is that all melees have been overtuned because of Reaper's strong release. They buffed melees to be on Reaper level. Even Black Mage was uplifted to Reaper's level. Now reaper is behind. What I do not want to see is a significant buff to Black Mage and Reaper and leaving nothing to ranged physical and caster. That would be a giant slap in our face as melee DPS and BLM are snowballing from each others. If they feel the current melee DPS are doing good damage. Then they need to uplift DPS from all casters, all ranged physical and reaper.
Reaper the guy who says MCH is more brain dead than RDM. Firemage Li I'm pretty sure. I wouldn't consider or value his opinion. He's a one trick RDM player that only plays RDM so RDM will always look better in an argument. "MCH is brain dead. RDM requires more brain cells" for example. I guess it is really hard to control black/white mana that was made ridiculously easy in Endwalker. There is no fight that requires thinking this tier on RDM. The only fight that is rough is P8S on the door boss. It doesn't require brain. RDM just get owned from lack of mobility on 1 mechanic and severely underperforms (but they also do much better than SMN on the second boss)