Look at
this post.
Re-cap:
Monk with 7/8 or 8/8 H2H merits and Rigor Baghnakhs has a base damage per hand of 152 and a base DPS of 33.8 (with 0 Martial Arts traits).
Every other melee Delve weapon has 27.3~27.5 DPS.
Mage Delve weapons have ~23 DPS.
Hand-to-hand has a >20% weapon DPS advantage over other jobs, which they still possess at the delay cap. Monk has the distinction of being essentially the only 1H DD used in endgame at the moment because of this reason and their large HP pools.
Apart from "I want to fill the equipment slot", I can't see any compelling argument for giving "knuckle grips" or whatever other stupid shit monks have proposed over the years.
Nerf monk and buff 1H DDs so that they're all as powerful as monk currently is.