Seems like he’s been pushed into using LLMs as a way to cope with the deluge of LLM-generated security reports

It's not just LLM generated security reports, but vulnerabilities discovered by AI. Your wording implies they were just reports, and of less validity. Lazy LLM reports are not what he is trying to cope with, since there is nothing to do but close those reports. He is talking about real, verified, vulnerabilities that weren't discovered until AI tools. Not because humans couldn't find them, but none ever did. When it comes to finding, it really doesn't matter if it's found by human or AI, since that doesn't change its existence or severity.