I still disagree with their decision to make libc THE system interface. I understand why it's important to provide a compatibility layer, bit, ideally, I would like to see a Linux-like (potentially semver-versioned) stable sycall API, or at the very least something like libsystem, i.e. a thin wrapper around technically unstable syscalls API.

The fact that binaries tend to rot on Linux shows that maybe only having a stable syscall ABI the best way to handle things either.