The AIs were not instructed to hack anything outside the sandbox they were in. Your definition would say that an AI instructed to hammer a nail that instead used the hammer to break a window, walked down the street, broke into someone's house and pulled nails out of the floorboards wasn't rogue because everything it did involved hammers and nails and was therefore not a "novel goal of its own."

I'm not sure I agree with that definition. I think the actions of the AI are more significant than its motivations. A common scenario posited for what people call rogue AI is AI doing the wrong thing for the right reasons, e.g. the paperclip maximizer.