It's bold to call something that has prevented real-world attacks "security theater", with the justification that one day the world might change enough that it's less likely to prevent future attacks. Was the printing press worthless, just because we have laser printers nowadays?
Anyhow, If you believe LLMs will kill security research, then surely you must also believe a cooldown of 1 week would be enough time for your favorite LLM to analyze a new package version?