In the eyes of Luo Wu and others, what Ye Fan said was merely bluster—a common reaction. It's quite normal for anyone to refute a few sentences in anger when humiliated by old classmates. Generally, such retorts are not taken seriously as they're just said in the heat of the moment.
Especially for the HR manager and director who often dealt with employees, both thought Ye Fan's response was completely normal and also felt that Luo Wu had gone too far. However, what they didn't expect was that Luo Wu actually went ahead and invited Angel over, even including all the company executives, which was clearly to make Ye Fan's life miserable.