And If you really want to compare "balance" between the casters right now, the difference between SMN and BLM right now is very minimal. You can pull logs and say "well look SMN is outperforming BLM" and that's honestly because no one is playing it in extremely optimized settings. I can tell you that some of the best BLM players can certainly bridge the gap that exists though. Sure SMN is still a SMALL rDPS gain over BLM if BLM is played optimally, but again that gap is minimal. If more skilled casters actually brought out BLM in speedkill settings, you would see this.

RDM on the other hand is a victim of its own kit. Everyone wants to say RDM damage is so low but did anyone forget that it has the most overpowered raise utility in the game??? Did anyone forget that it has one of the most simplest rotations in the game, and can be played reasonably well with hardly any effort???