A good review paper is infinitely better than an llm managing to find a few papers and making a summary. A knowledgeable researcher knows which papers are outdated and can make a trustworthy review paper, an LLM can't easily do that yet

Ok I take your point. However, it is possible to generate a middling review paper combining ai generated slop and edits. Maybe we would be tricked by it in certain circumstances. I don't mean to imply these outputs are something I would value reading. I am just arguing in favour of the proposed approach of arXiv.