Plus, let's say that WSL's system is the most coherent and non-contradictory one out there out of all Yip Man systems. What's wrong with crediting WSL's own genius and talent for it?
That's something a "true believer" or hero-worshipper might do.
But if it's not true, and there's no evidence to suggest it is, and much to the contrary, not crediting the VT system to WSL is just the honest position to take.
After all, he's one of Yip Man's students that actually went out and fought with Wing Chun. That sounds like a good way to find out what works and what doesn't and adjust your system accordingly.
That's not how the system works, and WSL knew better, as we discussed in
this thread.
The point of testing one's skill in fighting is to find errors and allow the system to correct them. This way we are continually improving our fighting skill, not adjusting the system to fill gaps.
A good example of this is the Tan Sau-Gan Sau-Tan Sau in section 6 of the form where it used to be Tan Sau-Jum Sau-Tan Sau. It's well known that WSL is the guy that pioneered that change not just in his own WC but in Yip Man WC as a whole after he brought the subject up with Yip Man. Why not say WSL was a smart guy and credit him for it?
Obviously because he didn't create the
gaang-sau...
He encountered a situation in fighting where
jam-sau failed for him, and YM told him to use
gaang-sau. Problem was he hadn't learned it yet because he hadn't gotten to the part of the system where it is first taught.
So together, it was decided that
gaang-sau should be taught earlier and so it was brought into the SNT set.
Importantly though,
gaang-sau did not replace
jam-sau. Others replaced the "old technique" and as a result their systems ceased to function properly, as now
jat-sau had to be used in DCS and students didn't learn about the double-edged sword that is
taan and
jam, an important pair throughout the entire system.