not even fact we can't do it because we definitely can
it just other 3 had way more of an upgrade to there defensive kit
DRK defensive kit hasn't had any major upgrades since Stormblood outside of TBN extra 10% it got in ShB

oblation is ok but its basically a gutted version PLD intervention so DRK can use it on themself
it's fine but it should have replaced Dark mind not be a lvl 82 skill