I don't think this film really belonged on the AFI list, so I'm fine about it getting removed. It's famous because James Dean died so young, but he wasn't really adding anything new on top of Brando and the film isn't nearly as "rebellious" as it markets itself. I think softening it and turning away from the original premise of sociopath delinquent (which I think Brando could have played) frankly results in it being mistitled. Dennis Hopper would go on to make a film which not only was more indicative of what the rebellious younger generation was actually like, but was made in a very different style and helped bust open the studio system for a "New Hollywood" containing independents, so I say he got the last laugh on Ray.
I would only call it "the Streetcar ending" if Blanche DuBois had been shot to death by the cops.