It seems to me that the power of this spell fits the overall "unbalanced" way the counters of this game works - intending for "unbalanced" not the negative meaning of the term, but the simple statement that very often the countermove is MUCH stronger than the move. I must say I see it as a feature - which kind of compensates the difficulty you get sometimes getting to counter the move your opponent threw at you if your nation has not the good path / research level for going with the best counter in time.
But I'm a n00bie so just feel free to kill my point badly
