That is not a good argument. What matters to companies is: "is this stable enough not to be a concern", and according to GP Nix falls short on that front currently. They will not care how you achieve this --- C, a rigorous process and a world-class army of developers like the kernel is fine; Rust, a sloppier process, and less developers will be fine too. Heck, I'm not sure they'd care if you deliver stable and robust software using hand-written assembly, if not out of concerns for long-term support (and your mental health).
That's not what anyone is doing though. You can run Nix with minor tweaks to e.g. its garbage collector settings[0] and you'll quickly see it crash in various ways. Memory safety is a real concern in programs, not a buzzword.
