The martial arts depicted in Chinese wuxia novels by Jin Yong, Gu Long, Leung Yu Sang, and others are invariably skills far more powerful than any martial art seen in the real world. There is nothing in the real world comparable to the Hong Lung 18 Palms, the 6 Mak Divine Swords, and even wuxia versions of real world martial arts such as Cheung 3 Fung's Tai Chi techniques from HSDS.
Do you think that the Chinese wuxia writers might have been compensating for something? In our discussions of real world martial arts on this forum, the consensus seems to be the Chinese martial arts in the real world today look pretty, but are utterly worthless in fights...routinely getting pwned by Japanese, Korean, and Southeast Asian martial arts of various kinds. Maybe the Chinese wuxia writers had to depict Chinese martial arts as being so superhumanly powerful because real world Chinese martial arts suck so badly?