It's such a shame that Rust developers feel like they feel unwelcome, especially due to a complete misunderstanding in implementation details.
Even worrying, this is kernel developers saying they prioritise their own convenience over end user safety.
Google has been on a Rust adoption scheme, and it seems to have done wonders on Android: https://security.googleblog.com/2022/12/memory-safe-languages-in-android-13.html?m=1
But also, there is a bit of a problem to adopt Rust. I think the memory model may prove challenging to some, but I do worry in this case that even if it was super simple, the existing C kernel devs would still reject the code due to it not being C and not willing to adopt a new language.