I'm not saying its ***, but it needs R30 be great.
Every piece in the new sets require R30(20+) to be great IMO. None of the base pieces really move the needle far beyond current options, unless you're looking to replace like, for example, Volte legs/Ashera Harness on BRD TP set with base Revelation legs/body, in which case it's an upgrade. The augments are what sets them apart, though. So the base Duty set is not incredibly impressive for most/all jobs on the set, but would probably be an immediate improvement for a starter player on those jobs, compared to anything they might currently have. Someone with R30 Gleti's body/legs/Relic AF+4/Malignance/Nyame likely have nothing to gain from the base pieces.
Now once you start adding DA, STP, Subtle Blow, and TA on a single piece of gear, there isn't a question. The set is absurd unless you're flat out blind. You can argue using AF+4 is better for THF for more critical hit damage, but IMO THF's biggest downfall is that most of it's TP pieces are not great defensively. Duty set provides an extremely tanking DD set that doesn't drop you too far below in HP, Magic Defense and Evasion, while adding amazing melee stats. It sort of splits the difference between Malignance/Gleti's/Nyame by incorporating benefits of all 3.