> I've never worked at a job in tech that didn't require code review

I have. Sometimes the resulting code was much worse than what you get from an LLM, and yet the project itself was still a success despite this.

I've also worked in places with code review, where the project's own code quality architecture-and-process caused it to be so late to the market it was an automatic failure.

What matters to a business is ideally identical to the business metrics, which are usually not (but sometimes are) the code metrics.