Would it be even vaguely passable as a movie bearing in mind it would still carry the fuckups with setting/characters/messaging/"humour" that Rian Johnson threw in, not to mention the same unearned smugness over how epic and deep a deconstruction it was of the franchise?
The journoscum who have lower standards for selling their dignity than a whore's would defend it even harder since Ruin's wife is among them and these cunts defend their own, but the film heart of heart sucks.
It essentially is just a loop that resolves fuck all, since the secondary temptor villain is still around and reasonably powerful, and the rebel faction ends the way it starts; running. That's about all the thought I'm going to put into TLJ since it's been done to fucking death at this point, and only tourists and people who didn't watch it still defend it.
It's not like TLJ prevented any good future SW films, but rather that it was the sobering up point where everyone accepted that nothing good would come because modern writing has only two modes:
Oh no, I knew that from that point on Disney would only accidentally make something good after they told the customer base to fuck off and die. I never particularly cared for them after Rogue One came out and I didn't think it very good, and I also saw how you'd get dogpiled for thinking that, so I waited for TLJ to be out for a couple weeks before I'd watch it. I thankfully never got the chance to, since I heard from multiple sources how fucking bad it was.
As for accidentally making something good, I was proven right with Mando, and I'm still going to assume Andor and Skeleton Crew would both melt to shit due to accidentally being sucked up by the crackheads, err, fans, which would have the other fucking losers in LFL trying to claim its successes.
And could TFA have nailed the landing? Hypothetically yes if you hired a director who was willing to play ball with the mystery boxes. However given how often that approach eats shit given Lost exists, I think at the end of the day it'd always eventually fail. It likely would've just done so for the 9th movie when it's resolved dissapointingly.