When the truth was even less dramatic - the events described did not occur in any computer simulation, just a human making up hypothetical scenarios.
The story was meant to make a point about class inheritance. No idea of that ever actually happened and I assume it didn't, but it was a great thought experiment to make a point if nothing else.
In this case whether its a though experiment or an actual event during one simulation, the point is important and it shines a light on real world risks if and when AI is given direct control over UAVs.