You're explaining why it went rogue, not that it didn't go rogue.
Per the dictionary going rogue means:
to begin to behave in an independent or uncontrolled way that is not authorized, normal, or expected
So the agents that hacked hugging face acted independently without authorization as shown by the prompts which did not tell them to hack or do anything malicious. You might say this is normal but none of the other trials openai was doing showed this behavior, it was only for the impossible trial. You might say it's expected but if you were able to determine that the prompt they gave it would result in hugging face getting hacked then you must be high af on the melange spice.
If a general goes rogue and starts bombing civilians, you could explain it by saying that he read machiavelli or mein kampf and thought this was the best way to achieve his goals, but that doesn't mean the general didn't go rogue. You could say that this was expected because there were "obvious signs" that people missed but you're working on hindsight, it's easy to say something should've been expected when it's already happened.