When this message was given, the whole city of Autumnfall panicked slightly.
The aristocracy was firmly opposed to migration; they could not accept giving up the city of Autumnfall. Because they were all aristocrats with huge wealth and land, if they gave up the city of Autumnfall, they would have nothing; almost all the nobles thought it was a rather stupid decision. In addition, they took this opportunity to accuse the church headed by Milan that it was they who made Autumnfall broke, and not able to pay the soldiers.
The Druids were more neutral. They realized that without help, when the orc army came back, they would not be able to defend the city.