Comment by eithed

Sure, producing code has become cheap. Yet again the taste matters and LLMs do not have taste - they will apply patterns that are unnecessary or not extendible, producing unmaintainable systems that nobody understands. Capturing domain knowledge was the crux of development process, but so was verifying, documenting, ensuring that multiple systems work together, maintaining uniformity. I don't know where the assumptions, done by developers, that they only need to produce code that just works or goes brrr fast comes from.

Domain expert can develop working code, but they will not be able to ensure above.