That was debunked long ago. Scenes of people collapsing like that are often filmed backwards to prevent the actor being injured. The whole “Ben lives in an alternate ending” conspiracy theory was just made up by desperate Reylos after the movie’s release.
Yes! Thank you StarkillerAG, I’ve been waiting for someone to address that!
On another note if anyone is particularly good at either extracting music from scenes with dialogue or removing music completely from scenes with dialogue, can you let me know?