Hard disagree. LLMs are fantastic for fixing bad architecture that's been around for a decade because nobody was willing to touch it. I can have it write tons and tons of sanity checks and then have it rewrite functionality piece by piece with far more verification than what I'd get from most engineers.

It's not immediate, it still takes weeks if you want to actually do QA and roll out to prod, but it's definitely better than the pre-LLM alternatives.