why is everyone so upset over the final hanging that takes place during this section?

Pipel,who everyone liked, was sentenced to death because suspects accused of blowing up a power plant on camp refused (despite torture) to give any information about it. The little boy, who had the face of a sad angel, was sentenced to be hanged. The prisoner who usually served as executioner refused to perform his task and had to be replaced by an SS officer. When it came time for the execution, the child said nothing, and the whole camp observed in silence. Since the child was so light, he didn't die immediately when he fell, and he remained alive, hanging for half an hour. All the prisoners wept that day, and one man kept asking where God was. That day Eliezer's soup tasted like corpses.