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.
A bit of a weak arc, sure, but imo it’s better than muddying the waters by being uncharacteristically ashamed of his Force-sensitivity.
What I like about this project is it streamlines a lot of the crap that JJ and Terrio threw in here for no real reason so people can at least try to understand the basic story.