If you asked Claude to review the code it would probably have pointed out the duplication pretty quickly. And I think this is the thing - if we are going to manage programmers who are using LLM's to write code, and have to do reviews for their code, reviewers aren't going to be able to do it for much longer without resorting to LLM assistance themselves to get the job done.

It's not going to be enough to say - "I don't use LLM's".