Delirium is fine. It's situationally helpful. Reprisal just needs work. Rng based storms path only usable while mt just doesn't match the utility of war or Pld. Also, Pld STR down 10% only comes from pld, war 10% damage down only comes from war/drk, but is 100% uptime on war, storms path is 1000% better, drk brings 10% int down, which monk usually keeps up 100% if you have anyway. Useful, sure, but not useful in every raid comp. Let's say 50% of raids use a monk. Delirium effect is useless in 50% of raid comps. Storms path/Halone is useful in 100% of raid comps. Reprisal should be noted here too, but given its large restrictions, it's just simply not as good.

War/Drk probably suffers less than pld/drk as far as utility, but pld/war just brings so much more. Just a small change to how drk can use damage down 10%, a couple tp adjustments, and maybe using blood weapon sans the 10% attack speed buff in grit, and drk is equal. Some may want bigger buffs, but I don't think it's necessary. Drk DPS and mitigation is fine, just a small utility change and it's good to go.