One minor nitpick: Delirium isn't locked behind Grit, and I wouldn't use it on BP either way. Unless the DPS are pants-on-head bad most things are gonna die in one BP activation + dropping grit and popping BW to clean up the remainder.
That said, now that Quietus has Blood Weapon baked in(mp restore on hit regardless of grit) I'd say DRK still has the edge overall vs WAR in practicality. Bubble pops and quietus spam bring back HW style MP overflow and even with the nerfs to DA-AD, a 1.2-1.5k heal per target per GCD is significant until >3 mobs.