Jar Jar Bricks said:
I’d say Finn’s arc in TROS is moreso about learning to fight for the galaxy at large - particular ex-troopers - and not just for the Resistance. He charges into battle with ex-Stormtroopers that aren’t technically a part of the actual Resistance.
I agree that that’s his character arc once he meets Jannah. But there is literally nothing for the audience to chew on from him as a character before that. Also, that particular struggle is never really set up early in the film.
At the end of the day however, the movie will always end up with him being Force sensitive and that does have the potential to have some through-line across the film. I feel that if there’s anyway to add back those bits and pay it off with AI, it will not only strengthen the Force sensitivity storyline so it’s set up from the beginning but also it will give him something to have in the first half of the movie.
As it stands he’s the only one on the trio that has nothing going on until they reach Kef Bir. Even Poe has the fact that he does shifty stuff planted since Passana, which eventually leads to Kijimi.
Again, I understand completely why this is not a popular idea but I personally feel that it’s worth exploring.