True, but, if you make a certain promise, those you gave the promise to have every right to expect that the you have taken every step and precaution to make sure that promise will be met. If things happen beyond your control that mean you cannot fulfill that promise, going silent is about the worst thing you can do. People expect at least an explanation, if not some form of a compensation.
Factory problems? Maybe, but those words should come from Jolla, not from Copernicus.
Jolla's management must be rubbing their hands in glee as this exercise clearly proves that they can get away with making any promise in the future without any repercussions should they fail to deliver again.