When I watch BITUS, I have the feeling that Paul is Fooling us: that most of the time, the music you hear and the movie don't match or belong together, differt recordings. Same as GET BACK.
Paul is not as good as he wants people to believe. (for example up close, or the cavern show: both not so polished and perfect).
Fot this reason I like put it there. It seems more honest and real to me.