> every change needs a human to take responsibility for and ownership of it, even if the changes were written by an LLM

Actually it could be the opposite: they hold the LLM responsible. When the code change breaks production they'll just ask the LLM to fix it. If it can't? "Not my fault, the LLM wrote it not me! We just need to improve our prompting next time!" Never underestimate humans' capacity to avoid doing work.