Without good and realistic answers to how the long-term maintenance of such changes would be managed, it is myopically unrealistic to propose those changes

Lina is talking about a minor change though. It challenges the dominant paradigm but her opinion seems to be that it doesn’t have negative impact on the overall maintainability. To shift the discussion to maintainability is whataboutism; if these kernels maintainers can’t accept patches that do not have a negative impact on maintainability or directly involve Rust in any way because they are related to Rust in general, that’s disappointing tribalism regardless of your opinions on Rust or Rust developers.

I might be missing some context here as I’m only going off what Lina has said, but if half of it is true then we need to shift attitudes before talking about how to integrate Rust in the kernel ecosystem. It certainly feels very disingenuous and retrograde to present Rust as some kind of existential threat rather than a novelty or opportunity, as if no combination of processes and tools could ever possibly overcome the stated maintainability challenges.