Their conclusion is also interesting. They don't see this as an alignment failure. They just think that their internal security measures in the training/evaluation environments were insufficient, and that this accidental (unintentional on the human side) attack on Hugging Face is a warning shot for intentional attacks by bad actors, which will occur very soon. For defense, they say models should be able to not just autonomously fix security vulnerabilities but also to then deploy them to production, without any human approval in the loop, otherwise the offense will be favored compared to the defense. (I guess the latter won't be popular among organizations, though they might warm up to it.)
But the more interesting thing is, as I said, that at least in this talk, they don't even mention that this unintentional attack indicates that models continue to be misaligned (their behavior was clearly reward hacking / cheating relative to the stated goal of the eval), which is a very bad sign for the future where misaligned models might be so powerful that they can't just be shut down.