Still, an attack will seriously damage our reputation.

And that means that the next warning the Pope gives will be about excommunication.
And Peter, I think you do want to attack the Poles without the Pope being in our way, don't you?

Bavaria should not attack, we've been trying to get in the Pope's favour with crusades and by giving them Durazzo, why shall we throw all that away, it's not worth. As the emperor has said: Milan is not worth it.