Others seemed to realize that Bai Rouyun's ability to push her limits was the result of familiarizing herself with the pressure, and they all felt rather embarrassed.
They all knew that Bai Rouyun was a new student like them, but she had clearly done a much better job at using her time within the Gravity Tower than they had.
Because they tried to do something their body could not handle, they were now injured and could no longer stay within the Gravity Tower as their injuries could become worse, so they left with sullen faces. However, none of them blamed Bai Rouyun.
She had never told them to follow her lead, nor had she paid them any attention. It was their own assumption that they could jump straight into doing the same thing as Bai Rouyun. Thus, they felt no hostility towards her, and were merely ashamed of their own actions.