Making the jobs feel complete by Lv70 is a fair point. That probably is the reason why you moved things like Intervene to a lower point, which would be a bit redundant though given PLD's ability to cast Holy Spirit at that level, but I repeat myself, so moving on. Making jobs feel complete for Ultimate content needs to be primarily adressed within mitigation tools if anything. I can't speak for UCOB, but for UWU DRK falls a bit behind if only for Dark Missionary missing compared to the other three tanks. The fight itself is very raid-wide heavy, so it stings. Things like gapclosers or combo advancements shouldn't necessarily be added for Lv70 Ultimates - if anything I think they made GNB a bit too good for having such a powerful kit at that level.

BW + Edge, yeah figured, I didn't talk much about it because I felt kinda "meh" about it.

Dark Missionary being available at Lv70 but not at Lv60 has a reason tbh. Dungeons and normal raids are pretty much trivialized anyways, but Dun Scaith and the Savage raids (SYNCED, min. item level optional) still have spice to it and even if it is only a small group doing things synced or so old in content, it shouldn't get trivialized by DRK having an already well-rounded kit at Lv60. The same way Lv60 synced Savage are niche so are Lv70 ultimates, so gotta stay fair here.

Glad you saw my point with Stalwart Soul though. If Abyssal Drain was still a manaspender, I "could" see it work out, but only if we keep it on OGCD and make it weaker than Flood of Shadow - which means the general use of the skill would go down outside of dungeon runs when it is a perfectly viable skill even in boss fights. So that 2-charge idea sits a lot better imo.

DRK being "squishy" at 60 and below, in my humble opinion, is a bit of a myth. Arguably yes, you do simply lack TBN and you rely on magic damage being around for better mitigation options, but if you take out Bloodspiller and Quietus from your GCD options, you are left with your 1-2-3 combo. Souleater goes a *seriously* long way for sustain. Many times I saved myself in The Epic of Alexander just from having the extra sustain from Souleater, so if you have even more in Lv60 content due to lack of Blood skills, up goes the HP/s. So DRK, imo, is fairly rounded at Lv60. It is the Lv63-lv69 gap where DRK may feel a tad squishy if you go REALLY big on pulls without a decent plan and / or healer, but apart from that, on bosses you are tip-top.