Actually if we were to describe Gao Longwei, the word dictator by itself would do pretty well. He was not harsh like one, but he definitely liked being in control of the situation.
And the situation often involved the people around him.
He wanted to know all the details surrounding something, and that would often lead to him being very strict and harsh to his employees. It was mostly him setting unrealistic work standards, but that too was not exactly innocent.
In his opinion, 'if I can do it, you can do it too.'
This meant that a lot of ordinary werewolves had to try to keep up with the pace of a dominant werewolf who functioned on high amounts of caffeine and pure willpower, without ever getting tired. A very unreasonable expectation indeed.
And Feng Jiao should have had every reason to believe that he would be this way with teaching as well. There was no reason to believe otherwise.