No one would intentionally wish to die here. Those cultivators who had experienced the war of Fallen Immortals should especially be more appreciative of the value of life and should do everything possible to prolong their lives rather than seek their own death.
However, it was difficult to understand why Flesh Massacre and Thousand Illusion Child died like this if they were not seeking for their own death.
The way both of them died was almost similar—First, Feng Yin left them alone, and then he ambushed them almost instantaneously. They then failed to struggle after a hard blow had hit them. Finally, General Feng Tian beheaded them.