If anything, it is the owners of these franchises wanting to re-write history in an attempt to show they weren’t offensive, derogatory, or used racial caricatures and so on, in their past content. A bid to retcon their own history - which they obviously have issue with.
I think you really nailed it here. Companies revise their own histories to appear as if they were against it all along, and people believe it wholeheartedly. Similar to a politician who does one thing his whole career and runs on campaign promises of the opposite thing and votes think “wow he’s totally being honest now, all the stuff he did before wasnt his fault”
Either way, I’d just prefer these companies to say “Here’s how it was originally shown, we know social sensibilities were changed but we will not pretend it never happened” similar to what WB did.