Well, the whole point of the game is in the battles; all other parts of the gameplay are just additions to the combat.
No, of course, I understand that if the enemy has 10 peasants and you have a hundred angels, then yes, there's no point in fighting yourself.
But when there's a chance of losing part of your army due to artificial stupidity, it's better to take control of the situation.
That's exactly what I meant.