Young Cheung Gwun Bo's association with the Shaolin Temple was not a happy one. He was nearly sentenced to be crippled by Shaolin after having helped them to drive away Ho Juk Do. Because of this incident, his beloved teacher Gok Yeun died. Although Cheung Gwun Bo, later Cheung 3 Fung, was not a vengeful or malicious person, he could not have had a positive view of Shaolin after this incident.
Did Cheung 3 Fung's feelings towards Shaolin influence the development of his martial arts? While I don't think that Cheung 3 Fung ever consciously thought to himself, "Gee. Let's see what kind of kung fu I can create to counter Shaolin's kung fu," the entire motif of Mo Dong Sect martial arts seems to directly counter that of Shaolin martial arts. Shaolin martial arts is about bone-breaking force, as Ah 2 and Ah 3 demonstrated on Cheung 3 Fung's students Yu Doi Nam and Yan Lei Ting. Mo Dong Sect's martial arts, however, particularly Tai Chi, is directly opposite to this: it uses softness to counter direct force. Tai Chi was particularly effective against Shaolin "hard" arts, as demonstrated by the way Cheung Mo Gei used Tai Chi Fist to defeat Ah 2 and Ah 3.
Subconsciously, therefore, did Cheung 3 Fung design the Mo Dong Sect martial arts to counter Shaolin's martial arts?