Because you think he didn't improve except for chi-sau? lol Why would a high ranking TWC sifu say it's ineffective and abandon it entirely, risking losing his large following, for something that didn't even improve his fighting skills?
How about you go learn some good VT and compare the result with TWC for yourself? That is if you care about possibly improving your skills versus arguing from ignorance on forums for the rest of your life.
Guys, it is pretty obvious that no one is going to change anyone's mind or point of view.
There really seems to be little point in continuing this thread if all we are going to do is see the same things posted over and over again.
While I do not think it is fair to belittle a system of Wing Chun or the head of that system, particularily when those deriding it don't seem able to post anything which would support their claims of having something better.
So, in the spirit of fairness to everyone here I am going to lock this thread.
If other threads pop up with the same deriding comments and lack of any benefit then those will be deleted.
Those who continue to try to promote their singular agenda and insult others will face further action.
This is directed at everyone involved not one person or group in particular.
If anyone wishes to discuss this with me feel free to email or PM me.