If you just up the DRK and not the WAR, this last will be forgotten as the MNK in HW imo.
Again, WAR doesn't have anything to support other players when DRK has TBN, just for example. The top in tank now is Pld, you see it everywere; WAR is most used when the fight doesn't need an OT.
We know when only one tank is buff, one is indirectly nerfed. If buffing DRK results to see the WAR set aside...