I think you posted this before the article was updated:

“Col Hamilton admits he ‘mis-spoke’ in his presentation at the FCAS Summit and the ‘rogue AI drone simulation’ was a hypothetical “thought experiment” from outside the military, based on plausible scenarios and likely outcomes rather than an actual USAF real-world simulation,” the Royal Aeronautical Society, the organization where Hamilton talked about the simulated test, told Motherboard in an email.

"We’ve never run that experiment, nor would we need to in order to realise that this is a plausible outcome,” Col. Tucker “Cinco” Hamilton, the USAF’s Chief of AI Test and Operations, said in a quote included in the Royal Aeronautical Society’s statement. “Despite this being a hypothetical example, this illustrates the real-world challenges posed by AI-powered capability and is why the Air Force is committed to the ethical development of AI”