I honestly think there's a lot of entitlement in the whole thing - "this is shit, it isn't the film I wanted, I demand you give me the film I want that only exists in my head, I KNOW YOU HAVE IT"
This leads to toxic nonsense - see also Mass Effect 3's ending or, hell, the sequel trilogy in general.
Sometimes a thing can be bad or disliked and that's just too fucking bad but, sadly, some people find it impossible to accept that because of their own expectations and ideas.
But, I honestly think things like this completely overstate the impact of these campaigns.
If it wasn't for Covid messing with productions and HBO Max launching, this wouldn't have happened. Simple as that. The Twitter campaign would have continued to rage on.
Don't get me wrong, I'm glad that the ability to salvage it exists. So many films/cuts/versions are completely lost to time, so a brand new cut is a major deal, but this happened because of lack of theatrical releases, not because of hashtags.