I haven't used any llm for code yet but most code I ever touched was mostly written by others, and I wouldn't have been able to write it from scratch, but was able to modify it, take only chunks out of the whole to use for something else, take only the structure and not the verbatim code and use in some other language, refactor to satisfy my own priorities vs the original, get useful results in languages I don't even know, etc etc.

It doesn't seem like using some pattern-matched uber-autocorrect code would be much different, especially once you understand that understandingless nature of what your getting.