It is teaching. However, the leader of this Expo is Taoist Hong Jun, the master of the Taishang Laojun and Yuanshi Tianzun, not Nu Wa. Nu Wa sent three demons to bring disaster to Shang Tang, one to meet the destiny, and the other to repay Shang and Zhou Dynasties. She is a fairy who transcends all this, and even if she is seen by the master of interpretation, she will worship.
Believing in a god doesn't have to have a sect, and there is no official history or unofficial history to record what Nuwa is. Because both she and Pangu Fuxi were invented by working people. Which immortal does the working people love, not because of his position, but because of his compassion.