What could be done to give THF some more durability is to give THF an ability similar to the aura steal trait that steals a mobs HP. This would have to be on a separate & lower timer than steal/despoil to be useful but it would solve the problem of unbalancing bolts.

SE definitely needs to give THF subtle blow but please don’t start us on tier 1 at level 91+ that'd be useless.

Regarding DW I'd say SE is just thinking of how jobs will be balanced at level 99 when THF should -I hope- have natively higher DW than we'd get from any sub, sucks we have to wait & be stuck /NIN until then tough.

The difference in tiers THF gets vs DNC will therefore probably narrow at 99 & is probably something SE is using to lift DNC DD up so it stays relevant against other jobs such as THF. Considering all the other buff they get and are likely to get in the future I think it's unnecessary as most if not all the composite jobs as I like to think of them such as DNC, PUP, SCH etc. that have abilities over a range of other jobs territories are already powerful enough though I'm probably just QQ'n because they're taking a little of the shine off my THF, MNK & BLM lol.