IMO, that falls under the same umbrella as copyright in terms of distribution.

The actor in a porn needs to sign over their rights before you can distribute it. If you’ve got all the proper paperwork then it doesn’t matter if it’s your ex and they want to retroactively remove permission. On the other hand if you’ve don’t then the ex has the same protections as Disney has over one of their movies.

Now we can call this censorship, but it’s rather stretching the definition.