Why did Dong Fangshuo and others in Han Tian Zi 1 change their names in Han Tian Zi 2?

Because it involves history, I am afraid of misleading everyone. I think the great man's The Son of Heaven is a historical drama, and he plays the truth. In fact, Dong Fangshuo is a humorous old man and an exhorter in history. He didn't start his career by fortune telling. So SARFT asked people to change their names. There is also a name change, that is, the TV version of "The Story of Lu Bu and Diusim" is called "Butterfly Dancing the End of the World"