But if not, and the alarmists are right, deep shit. That's why the author's argument is void. The author needs to show that the chance of an AI with a simple goal and hyperintelligence is negligible. "it might be" is a coin toss, that doesn't help.
No artificial intelligence will ever spontaneously develop morals, because the questions "what can I do" and "what should I do" are eternally separated by Hume's guillotine.
The motivations will always have to be provided by the people who make the machine, and we have been seen in the past that artificial intelligences are very good at finding loopholes in their moral code. Here are some real examples: https://docs.google.com/spreadsheets/u/1/d/e/2PACX-1vRPiprOa...
I think in this case it might be you who is mistreating what's written. This also produces the same not-working result but for somewhat different reasons.