Homie, Luke was a moisture farmer who shot rats and talked to a hobo.

Because his touching the force woke him form his programing. Kylo sensed it. I didn’t say he was going to be a good Jedi. but his competency was on par with Kylo in a way that Rey’s was not. Rey was outshining both of them. Her whole deal was set to be that she had raw power but didn’t want to play either side.

There is a general rule in film making and story telling. You don’t do something without purpose. Finn holding the lightsaber was signalling, yes. It was narrative foreshadowing. checkov’s gun given weight by the promotions for the movie which had Finn holding the lightsaber. In the film, He didn’t just hold a light saber or use it quickly for some one-off maneuver. Finn wielded the lightsaber. He later stepped up to Kylo and got thrashed, giving the character a path and motivation to improve. Rey was going to have her own light saber eventually, maybe even a saber staff.

I swear people just don’t have media literacy anymore. John Boyega was very vocally pissed by the end of the trilogy. Finn spent all of IX trying to tell Rey something. It’s been mostly considered that he was trying to tell her that he was force sensitive. A fact we likely would have learned in the previous movie but we never heard at all in the trilogy. Last I heard he was only willing to come back because Dave Filoni spoke to him personally. Even after that he might be getting shafted by behind the scenes politics.

Disney is still trying to fix what Johnson did to Star Wars in cinema.