Every single production OS, including the one you use right now, was made before LLMs even existed.
> What makes sense if that of course any LLM-generated code must be reviewed by a good programmer
The time of good programmers, especially ones working for free in their spare time on OSS projects, is a limited resource.
The ability to generate slop using LLMs, is effectively unlimited.
This discrepancy can only be resolved in one way: https://itsfoss.com/news/curl-ai-slop/