I thought it was odd too untli I read the article and realised they were not talking about a real threat, they were talking about an analysts scenario. To quote:
"One of our analysts actually saw that the nation state had the intention to develop and to deliver — to actually use this capability — to destroy computers."
So basically this is a fear-mongering story since if the country in question had had the intention and capability to deploy such an attack, it would have been SUCCESSFUL. Only a small proportion on PCs would have been "fixed" if they had "worked with computer manufacturers".
They really do think everyone is stupid don't they?