Without the 9 Yeung Jen Ging, even in fragments, the Mo Dong Sect and Ngor Mei Sect's martial arts would not have developed in the manner that they did. The 9 Yeung Jen Ging had a profound influence on the martial arts of Cheung 3 Fung and Gwok Seung, and became the foundation of their respective sects' martial arts.
By the time that the 9 Yeung Jen Ging entered the picture for Shaolin, the Shaolin Temple had been renowned for its native martial arts canon for centuries. In light of this, did Shaolin incorporate the 9 Yeung Divine Art into its own martial arts? A number of Shaolin monks, including Gok Yeun, Hung Geen, and perhaps a few others were trained in the 9 Yeung Divine Art. Wouldn't the authorities at Shaolin have problems with this? During DGSD, Shaolin made a big deal about its acolytes not learning non-Shaolin martial arts. Wouldn't Shaolin consider it shameful that it must "borrow" someone else's martial arts to be competitive with the other elite sects of wulin?