Honest take: I understand you omitted a fair amount of information to protect your identity (smart) which may change my take.. but from what you wrote, you sound selfish as hell. If you’re willing to quit on this, go ahead. It sounds like a future airline career is driving your decision making; my opinion, that shouldn’t even be in the equation.
All I ever wanted to do, was fly AF fighters growing up, I can’t imagine throwing that chance away because of UPT reindeer games (I’ll obviously concede these aren’t minor games). I went through UPT when one or two guys got fighters and a large portion were sent to RPAs. It would’ve been easy to be down and depressed, but most guys and gals weren’t, they kept positive attitudes, ate the shit sandwiches, and pressed. It’s cliche, but I think there should be a little bit of Service Before Self..
I got lucky, although I didn’t get -38s, I still got to fly some incredible missions to interesting places that made differences in peoples lives—not all the time certainly, and often only at the tactical/operational level, but a handful of strategic impacts as well.
I would not think of quitting over UPT syllabus and timeline shenanigans.