Salted Earth pulling enemies to you in PvE could actually be useful, though it would have a billion exceptions when a boss is supposed to be in a particular spot.

TBN is good actually and is DRK's strongest tool, as short cooldown mit it's only surpassed in dungeons by Raw "Hallowed Ground on a 25 sec CD" Intuition and it's older brother Bloodwhetting, while also being very potent at mitigating tankbusters. It is effectively already free unless you move MP out of burst with it actually being a damage gain when used properly and removing that element of DRK is quite literally the only uniqueness left.

Oblation is just the extra mit all short CDs got in Endwalker except better because it's a flexible mit with charges, don't be disappointed just because the tooltip isn't 7 paragraphs, being separate also helps ensure TBN pops.

Bloodprice but you don't have to be hit just isn't Bloodprice, DRK does need more MP management back though it's just Edge gauge now.