Shen Ying had never shown her real power in front of the disciples, and they didn't see her often. Yet they could see the high regard Fatty, Yi Qing and even Lonemoon himself had for her. Those older had their concerns. But the younger ones had never been through those things, and they believed themselves even more. They thought that they learned some skills beyond ordinary mortals and that made them different. The thought of survival of the strongest was formed in their minds, so they had no restraint in singling her out.
They even thought that even if they were in the wrong, he would not punish them for a mortal. Such thoughts were completely the opposite from Lonemoon's original intention. Continuing to allow them to grow would only make them even more arrogant, even more insolent, and even looking down upon the mortals who were inferior to them. He wanted a bodyguard for the human race, not a group who ruled and bullied them.