Right now I feel like GNB and WAR are in a good spot in terms of flavor. I see the general concern about streamlining the job but honestly if they make no more attempts to do so from here on out I think they'll find they've found a sweet spot. PLD needs a little love instead of its main utility just being stupid strong in terms of defense. DRK doesn't feel...unique enough? I don't know. I share the streamlining concern.

But also be aware that you're framing this argument from the perspective of a player, and in particular a player who is being ignorant of the overall need for job inclusivity. If every job doesn't bring the bare minimum of X to the table, then people will flood to one job, people will choose "role only" party make-ups and it will alienate a portion of the playerbase. It happened in FFXI when that was still running. From the developer's perspective it's probably very difficult to balance these jobs to be in tune with what they need to do in the role, what they want it to do as a job and what the players want it to do.