Agreed, This is really annoying.
NoV was nuked pre-emtpively 4-5x times more in the UJW more than the previous 7x1 wars against NoV. Anyone who still has a problem with this now is either an idiot, or extremely petty.
For the record, no one whined about this at the time. It was just war.
Subsequent wars made this "first strike nuke" issue irrelevant.
edit: the last major CN wide war established a precedent that no one needs to announce nuclear attacks beforehand. I would be happy to argue this point in private with anyone who experienced this first hand.