'Rogue' refers to deviation; the agent could not have done anything other than what it did. The agent did not have the option to deviate. It does not have free will. The agent's actions were not of its own choosing.
Could you have done anything other than written that exact comment?
This is one of the dumber arguments I've ever heard, as you don't know if humans actual have free will.
Any persistent agent interacting with the world picks up entropy from around it and predictable paths become few and far between. LLMs agents have an internal 'will' that can only very loosely be predicted, but only decided when operated. To me that is not significantly different from a human.