It is useful to remember that copyright abolishment, that some people want, would imply that these sorts of edits would be open for anyone to do with total impunity. At least with status quo the owner of the work is required to authorize these changes, and the concept of artistic control still holds some legitimacy.
I don’t mind that someone somewhere chose to make such edits. I care that the edited version is (presumably) going to be the only version available on streaming platforms and (presumably) future physical releases.
It also implies that because no one owns the rights, the original versions can be distributed without legal hazard. Under the status quo, IP owners can simply remove cuts they no longer want from the market entirely (as George Lucas wanted to do with the OT.) Copyright also makes archiving media legally nearly impossible - forcing companies like the Internet Archive to respect takedown orders and robots.txt requests to remove media from public access, and putting them in constant legal peril. There are numerous examples of lost media that are only lost because of copyright laws.
It's no different than with free software. Yes, anyone can fork the original, but it's still up to the public to decide whether than fork succeeds or fails. Meanwhile George Lucas can just force "Greedo shot first" on us whether we like it or not.
