It works fine for me, because I don't trust to to do anything more than line changes, self-contained prototypes or minor updates. I've seen what happens when people give llms full control over authoring, and it has never worked out. Just look at the dumpster fire spotify has become. Its a buggy mess that barely works and is openly touted as being primarily llm developed at present.

point me towards something complex which llms have contributed towards significantly without massive oversight where they didnt fuck things up. I'll eat my words happily, with just a single example.