Imagine if Monk and Red Mage were comparable.

Monk is great for uptime yes. It's also much more complex than Red Mage and should do more dps, so it's a bad example. Also the insta rez that RDM has, lands it into a sorta half support half dps role, so I guess devs decided they'd give it the games support dps, instead of a pure dps rank. I think the better example would be to compare monk to a BLM, but we don't wanna do that because the disparity isn't as great.