Should Dark Knight get a Rework?

[Jeeqbit]

Higher APM floor over lulls. (This would likely involve increasing MP generation somewhat, forcing more out-of-burst MP spenders

Technically, this could be achieved by stacking Skill Speed, which not only increases the frequency of the GCD, but has the side effect of increasing how much MP and HP you regenerate through a fight because of the increased amount of Syphon Strikes and Souleaters, which increases the amount of Edges and Bloodspillers you get. People are just unwilling to do this because it's not a BiS stat.

But it would be nice to be able to get haste without having to stack it.

I think what darkknight suffers from is that he should be a tank who leeches life from his enemies basically but the healing potency the job has on the attacks is really really low or well almost as much as other tanks (except paladin ofc) which makes it kinda strange. They could easily fix that by putting some selfheals on some of the attacks.

The problem is that Warrior also has the lifesteal identity, which started with Storm's Path and Bloodbath and evolved into what we know now as Bloodwhetting and Nascent Flash. In order to differentiate Dark Knight from a Warrior, they seem to have gone in the direction of MP and absorbing damage into a shield. They could swap their identities, but ultimately I think they should try to keep them unique.

they are just not as fun to play as like warrior who is basically an immortal aoe god who can clear the dungeon basically without your help.

There is content that a Dark Knight can do this in, just less of the time and other tanks are capable of it as well, especially Paladin. Tanks have always been able to do this sort of thing in dungeons. It's not new like people seem to believe lately.