I think you AAAAALLL trying to be to technical about this.
Rather go back to understanding what a DARK KNIGHT is and what a WARRIOR is.
Dungeon & dragon the father of all RPG classes is a good guidance method.
The same principle applies to a witch and a wizard or sorcerer they all CASTERS and similar in ways.
WARRIOR and DARK KNIGHT are both melee brawlers and they similar the same.
I'm happy with how the class is with a few tweaks it should make it a bit more unique, but i'll leave that to SQ Enix they've been doing this for years I trust their decisions.