Cyberwar hasn't necessarily led to the massive loss of life associated with nuclear or chemical weapons. Until that happens (or like with nuclear weapons, we can culturally show how much of a zero-sum game it is), ordinary people won't have an incentive to take action. Technically minded people may carry capital, but we're vastly outnumbered by the dwindling working class politically.
The only way a nuclear system could be compromised is if there was some idiot surfing the internet on it, or if someone intricately familiar with the systems and network tailored an exploit to target it. If we have teams of people targeting specific systems like this, and just hovering over the execution button, then I'd say this is a huge problem. Nothing in this article really described the nature of the threat these weapons pose.