Definite agree on having human-based redundant systems.

But I think the point the parent commenter made is: if there's not a functional difference in the result (i.e., job satisfies the definition of done), it doesn't matter if the AI generated the code or did the diagnosis.

But I think it's also fair to say that the process matters, even if the result is the same. If something exists for our benefit (e.g., there's no real alternative to learning-by-doing, and people need to know stuff for safety/security reasons), and we're fine with the trade-off, there's no reason to just give up the process to the AI.