Swords were just a type of weapon, but with many generations of cultivators immersing their entire lives to furthering the Way of Sword over the course of many years, it had already developed into a complex art with countless paths. Naturally, the method of cultivation for each path also differed vastly from one another.
It was precisely for this reason that heritage was extremely important.
There were simply too many different Sword Intent and sword arts within the Sword Lagoon that if one were to attempt to use them as an inspiration to further one's mastery in swordsmanship, putting aside the fact that the divergence in the fundamental principles of each path of swordsmanship would make it very unlikely for one to succeed, the odds were that one's cultivation would go berserk instead.
It was also for this reason why the Master Teacher Pavilion chose to limit the cultivators' access to cultivation technique manuals.