It would be amazing.

Fan edit, spoofs, redubs, fan commentary tracks, watch alongs.

It could be a cultural renaissance.

I’m fairly sure that at this point pirating has been shown to lead to increased sales, even of small scale productions.

Also, no one said that people can’t keep the rights for a while, just that if you don’t let people access those things you don’t get to prosecute them for making the art available.