After Tian Jizi died in battle, the war intent of the cultivators from Chang Chun Temple immediately collapsed, but there were still some elders and disciples who vowed to never surrender, maintaining their last desperate fight using the Sect Protection Array.
When the Sect Protection Array was completely broken through, those stubborn elders and disciples who refused to surrender were all eliminated.
Xi Ying's methods were not cruel, but they were very decisive.
Some of these people chose to surrender only after being captured, and there were those in the Double Moon Alliance who pleaded on their behalf, but Xi Ying did not hesitate at all, because she had already offered them a chance to surrender after killing Tian Jizi.
That was the last chance for all the Chang Chun Temple cultivators to save their lives. Those who did not surrender then would not be accepted later; they were to be killed without mercy.
