Tang Shaoyang sent Li Shuang, his daughters, and the team back because Azhug asked him to stay for further discussion. The Ogre mentioned a development, but it was more than that; he had a personal question.
"May I know what Lady Li Shuang's class is, Boss? I have tried to get closer to Aela, but the best thing I could achieve is petting her. She doesn't want to walk with me, let alone trying to act like the way she acted toward Lady Li Shuang."
Tang Shaoyang assumed that was a personal question. The Ogre assumed Li Shuang might have a class that could get her naturally closer to the Beast Spirit. That made sense, and Azhug wanted that class if it could help him get closer to the Beast Spirit.
