True, pure marketing - or outright propaganda.
It won't get us killed. It would require a state to plug an AI into their nuclear arsenal with full, independent target and fire permissions - there are too many humans in any state for something that absurdly stupid to happen. I know we're living in the most stupid timeline, but that's something simply not realistic to expect ever happening.
Other than that it's just scaremongering by AI companies for marketing reasons and social media influencers to make money (remember, outrage and fear generates revenue through clicks and impressions on corpo media).