This is not a question of if I could do more with an elbow. The issue is do I have all the grammar (principles) and words & phrases (techniques) to say I have all of the style. And, sometimes you don't think of everything. Learning a new routine gives you something different. Therefore before I claim to have known it all, I need to have at least seen "it all!"
Seems akin to me of saying that you cannot attain a Masters Degree in English,... if you don't know the definition of EVERY WORD IN THE DICTIONARY. I understand your point,... but even the Hong Kong White Crane Athletic Assc. set about condensing the forms in the late 80's/early 90's because there is a lot of repetion within the sets. I've got about 18 sets myself (not including the variations of Luk Lek Kuen), but there comes a point when you ask yourself (at least I did,) have I truly 'mastered' any of what I have,.... or am I just looking for more stuff to 'collect.'