You still have to take into account the choice of the attack. If this were MK, or TOP, or GOD rather than \m/, the situation would have had a much different outcome. NpO chose to exercise it's course of action because they had a firm grasp on the situation and the repercussions to Polaris as an alliance, and the nations of polaris. If they also would have attacked PC, then the can that contains the worms would have been opened for this to move beyond their control. Thus why they are choosing to force PC to attack them and be the "aggressors" when in fact they are still the aggressors regardless of who attacks first.
Might makes right.