I think the context that you're missing is that the author of the post is one of the main developers for the Asahi Linux project that is porting Linux to the Ap

I think the context that you're missing is that the author of the post is one of the main developers for the Asahi Linux project that is porting Linux to the Apple M1/M2 family of Macs. They're trying to implement for Linux software support for all the Mac hardware capabilities that macOS already supports. Since the speaker safety model is apparently done in software under macOS, an equivalent needs to be reverse engineered and implemented for Linux in order for Linux to be able to use the speaker hardware as effectively as macOS does.