The ancient parchment scroll had a much deeper impact on Hou Niao than his calm appearance suggested.
He began to doubt whether the Body Sword Skill's Nine Character Mantra of the Quanzhen Sect and the information on the ancient parchment were originally complementary. Had they diverged for some eternally unknowable reason, preventing the flower from blooming at all?
The Grassland people focused solely on attacking with their swords and, in order to compensate for their weaknesses, they somehow came up with a mishmash of Body Cultivation Skills from who knows where.
The Shan Sect of Quanzhen dedicated itself to long-range Flying Swords, eventually incorporating a variety of mismatched Spells to become more well-rounded.
Both had forgotten about the Body Sword Skill, and therefore, they overlooked the issue of the Sword Spirit.