Some additions:
MNK has mantra
DRG increases BRD damage
NIN increases party damage by 10% for 10s every minute
Edit: MNK also has a permanent INT debuff (whoever cares).
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Mnk can stun (twice with a good Shoulder Tackle) AND silence as I fondly remember solo silencing ADS back in the day and you have Steel Peak.
That's the main problem with these comparison posts, imo. People are always forgetting about or dismissing ALL points of the DRG and MNK. DRG still seems to be the better AOE dps, for example.
I think 2.4 is a step towards the right direction for DRG. I don't think it needs more positional requirements to make it more MNK-like. Just give it more off-GCD jumps (or further shorten the cooldown on the current jumps). Could even maybe add some kind of jump that ties into one of the base combo