The thing is, the more I thought about it, the more I think Finn's storyline, in the hands of a proper Episode 9 director, could have really taken it and went places with it.
What Finn uncovered was essentially a military industrial complex. Retroactively, this could explain why the FO gained so much ground so quickly and why the events of the last movies played out so similarly. The financial forces backing them set up a repeat of the Empire vs Rebels narrative in order to profit off of it. And there is a significant paradigm shift to it because the reasons why the war is fought is fundamentally changed, and thus requires different resolutions to hte story than the last trilgoy did of merely defeating the FO. Until they fix the forces that profit off there being a constant war going on, another FO-like force will eventually rise again.
There's a lot of potential with that if people pursued it. I don't think that makes Finn's character journey in TLJ better in itself, but it does go a way of making it significant.
