He's not a skeptic, he's asking you to explicitly state your reasoning with the expectation that either the readers will learn something or (more likely) you will realize that your thought and speech pattern there was the equivalent of an LLM hallucinating. Yes you can prompt it as you suggested and yes you will generally receive a convincing answer but it is not doing what you seem to think it is doing ie the generated rating is complete bullshit that the model pulled out of its proverbial ass.