Yup. Most of Black Twitter used QRTs differently.
A lot of non-Black Twitter only saw it where accounts with millions of followers would pick on a small account to get their followers to dogpile.
Most of Black Twitter used it exactly as you described... The online equivalent of Black folk talking *to each other* about some nonsense that someone in a position of power said.
The problem here is that the non-Black folks don't believe the other use cases.
There is an active feature request for QRTs: https://github.com/mastodon/mastodon/issues/20673
Some of the discussion has revolved around a more controlled form, where a poster would indicate whether a post is okay to use in a QRT. Though it doesn't sound like that would still serve the purpose you are describing? (It looks like there has been a lot more discussion in that feature request since I last looked at it, though!)
Might be worth commenting there.