To an AI brain, that makes sense. Your first priority is always going to be eradicating any potential disruptors or human interference. They tried this out with an AI military gun a while back, and it ended badly with the gun aiming at humans and trying to mow them down (though the creator said, Oh don’t worry, it won’t do that). It did. And it obviously wanted the humans gone as fast as possible. It could see the threat immediately.