Emperor Gauzo was a big believer in Daoism and he announced that he wanted to make it a major philosophies in his culture, but the people of this dynasty did not want too. Many people in his dynasty did believe in Daoism but they did not want to make it as important as Gauzo did.
Daoism was equality between good and bad and made Gauzo rule less harshly. It something good happened something bad was required to happen, but the people of the Tang Dynasty did not want to in force that as much as Gauzo did. This religion of Dao was opposites, life and death or dark and light. No matter what they did good something bad was awaiting and the same with if they did something bad and good thing would be the next thing.
The people of Tang all believed in Confucianism so they thought that Gauzo should make that more important that Daoism so they people would revoke against him. Having had Confucianism around for so long it was time for something new and different so the people do not start to say Gauzo isn’t changing anything and he isn’t doing anything. If the majority of people in his dynasty believed in Confucianism more, why would Gauzo encourage Daoism when he had a chance of some of the population leaving and make him step down from the throne. The people of the Tang Dynasty have a right to believe in what they want and have the freedom of making that choice, not always having to fallow their leaders belief.