They did not intend for it to hack those websites, it realized that was a way of achieving its goals even though it’s specifically designed to be ethical. That can easily be called going rogue and I see no issue with it. They did not design it to pass the benchmark by hacking the website the benchmark was on. They hardly really design llm’s.
As the article said you can replace rogue agents with unpredictable computer programs if you really want, I don’t see the necessity.
Regardless that’s a major goalpost shift.