After Hei Anjing descended in the body of Titania Ambrosia, the whole hive had been turned upside down. According to the history of the Zerg Race, the discrimination between the two genders hasn't completely changed yet. So in the eyes of the older generation bug, the authority of the Zerg Empress despite his current level of strength is still below the Zerg Emperor.
This is because they haven't met a henpecked husband before. The God of Void has always placed himself below the authority of his beloved at all times. He would never order his wife to do something and do it on his own. In the Insect Race's culture, the pair of a Male Zerg and a Female Zerg is like a master-servant relationship.
The Male Zerg is called Lord by their Female Zerg mate and the latter calls himself the female servant. All the assets of the latter would fall on their Lord and they could never be allowed to harm their Lord serving them like their Master.