I find that "fact" to be very suspect. Most people have never even seen the film as it hasn't been legally available in the US since the late 80's. The whole petition thing was a result of some major "perfect storm" factors
- COVID - Everyone was starting to go a little crazy being stuck at home and online movements were big at this time as a result. A lot of unhappy people with nothing to do be online and tied into echo chambers.
- BLM - A protest that I myself was swept up in and posted/shared probably a bit more than I should have due to reason #1. Getting a major company to "listen" to these protests is difficult, much less to have one implement change. Once Disney showed they were entertaining the idea, the whole movement blew up because everyone knew they were joining a winning fight vs protesting the NFL or other targets at the time.
- The fan concept video on Twitter - With people glued to their screens and dreaming of getting out of the house, they were shown that Disney could easily make a NEW ride based on characters they knew by making some minor changes to a classic. The solution to turn the attraction into a PatF attraction was integral for this movement to succeed. Now it wouldn't be about tearing down a ride that people love but updating it for a new audience. People who didn't even care about the racial issues of either film were now on board because the Fan-Art looked fun and new. You didn't have to care about the issues, you could just want to ride that new ride.
- Disney's retheme pushes - We know from Rhode that Disney was pushing to quickly and cheaply retheme older attractions with outdated IP to instead push new IP. This is why Mission BO occurred, a Rhode compromise to avoid a worse retheme of another attraction. Maelstrom for Frozen, Stormrider for Nemo, etc etc etc. Disney has seen the benefit of keeping bones in place and just swapping out the set dressing. Here was the chance to change a major E-Ticket into being based on characters they couldn't fully embrace for characters that they wanted to push more.
I'm not saying that were not people bothered by the ride's inspiration. But I don't remember anyone ever criticizing the ride or saying the ride makes them uncomfortable. At the most, it would be connected in a trial way of "hey, did you know this ride is actually based on this old racist movie? Disney won't even show it it's so bad."
And in regard to BLM, most Black Americans I spoke with were concerned about Police Brutality and our Justice System and theme park ride was so low that it didn't even make the list of things we discussed.