I wish films became open source after a short period, that is, I want to see studios eventually release all their archival materials for every film so that fans can release their own cuts. Eventually it’d just be normal to see perfected versions of films. As cultural norms change the work can be tailored or lampooned to stay relevant and valuable.

In reality they’re scared of some custom spins damaging the name.

For example: Star Wars OT has been released so many times with different cuts that there are fan edits that pull scenes from all of them and discard the trash ones to make a superior movie.

These are now recommended by fans as canon for new viewers, instead of any particular Lucas release.