Why do other countries know the traveler's story and Xumishan doesn't?

Whether the protagonist will tell the story of kind Wang Shu, regenerate a branch of kind Wang Shu in the world tree, and pollute the world tree with taboo knowledge again is unknown.

Moreover, it is not necessarily a bad thing to forget the wish of the King of the Tree of Mercy. I am more worried that since the anti-Lord is already a Tiwa, will the anti-Lord's memory be modified, and will it lead to the deviation of the two protagonists' cognition of the world?

Moreover, Naxi da ji is only 500 years old. We don't know whether this obvious bug is directly forgotten by people and Shenzhou VII, or whether there will be other trends.