Although sacrifice is inevitable, as a leader, Xu Yang still has the responsibility to minimize it as much as possible.
This was also the reason why Chen Tianjie was not stopped when he fled during the previous major battle.
It's because they did not want the Iron Heart Fortress Master at the ultimate peak of Divine Intent to become desperate and destroy both friend and foe with the Heavenly Tribulation Great Array, increasing the casualties among the students of the Scholar's Palace and the people of the Heavenly Domain. After all, this would eventually become the territory overseen by the Scholar's Palace, and all losses would be their own.
Therefore, everyone allowed Chen Tianjie to escape to the outskirts of the city, where Xu Yang, the Taoist Master, personally dealt with him.
The same goes for the Demon Sect.
