I like the idea of adding new job abilities to DNC but i disagree that the job is pretty meh.

DNC is pretty strong in an ideal party setup, it is actually worse in a buffless situation.

I think the problem with DNC right now is the lack of a Fusion WS since what makes DNC strong is its skillchain bonus. I don't think it is a weak job but it's also situational. If your party is just going to spam WSes DNC is losing a lot of danage from not skillchaining.

DNC also has the ability to force a weapon skill to crit which is surprisingly good for Rudra's Storm. I don't think DNC right now is in a bad position but I would definitely appreciate new abilities.