A lot of those trailer shots are just glamour shots. For instance Jyn vs Tie Fighter, Jyn in tunnel, etc
Exactly.
Not to mention earlier versions of the film were unfinished in many regards (VFX, sound mixing, score, etc.), and were likely quite a bit worse than the theatrical. Oh, and yeah, when has a studio ever released a rough cut of a film before?
Literally the only instance I can think of is Alien 3, but that’s only because Fincher wouldn’t do a director’s cut. And how much later was that?
Well, I didn’t know about that, but still they showed it at NYFF, so I don’t think the situations are very similar (I imagine that WIP probably wasn’t all that different from the theatrical, beyond being unfinished).