The God of Aristocracy was unexpectedly hit hard in their own church. There were countless casualties among the followers, but yet, the God of Aristocracy had stepped up to become a great Divine Power. This was certainly a great shock to the other gods.
Generally speaking, if a church was hit hard, resulting in countless casualties among its followers, this would have a negative impact on its god. Though it would not directly cause damage to the god's divinity, a substantial amount of divinity would inevitably be reduced. If the strategy was not timely adjusted to recover the loss, the next step would often be the impairment of divinity, or even the reduction of divinity.
So in the war of gods, attacking one another's churches and eliminating each other's followers were commonly used means that had always been proved to be effective.