DRK is still ahead of PLD in DPS in OT and MT slots, and is the potentially highest MT DPS. DPS isn't the problem with DRK. Utility is, at this point.
Look at the balance of the melee DPS for guidance. Its arguably perfect:
MNK: best DPS, worst utility
DRG: high DPS, high utility
NIN: worst DPS, best utility
Why SE seems incapable/unwilling to strike this balance with the 3 tanks escapes me.
Currently DRK is the DRG of tanks on DPS, but the MNK of tanks on utility. Come now.