LMAO, love the slimes.
It is unfair to a degree for BLM DPS being higher given similar utility and both being mage classes. But BLM damage is effected by RNG, battle mechanics, Foe, movement. Often you need to make special accommodations for BLM so that they can maintain their DPS. (no mechanics. eat extra damage to avoid having to move etc). So in that regard it kind of makes sense that BLM max DPS has a higher potential.
As you say Flare, you play SMN for the complexity over BLM. If given better MP resources on SMN, that takes away from some of the complexity to manage those resources in those longer fights. This would make SMN pretty easy to play in longer fights, probably OP in long fights with mechanics that they excel at, OP in short fights with mechanics that they excel at (Ruin II spam + AA, M2 all the things).
Those values are 100% accurate. Although it's not against every class of course, only the top DPS for that given turn. In some cases it's, equal to, or <10 DPS to other classes.
So, it's really not as game breaking as it seems, as I could see SMN being if it had better MP resources on fights where it really shines. (50-80 DPS over top)