With the development that this was already discovered prior, this now feels a lot like the issue where an LLM "finds" a new bug only for it to turn out that it had been discussed and disregarded years earlier.

To me, the scary thing is that an LLM typically does a good job of convincing it's handler (or others) that its (re)discovery is of significance. Whether it's of undue significance or not determines if this new wave LLM research is just creating more work for us humans, be they maintainers of projects or archeologists.