Criticism is not valid unless the critic can do and has done better, and can demonstrate it on video.
Otherwise, no need to even consider the criticism, right?
Can we say ad hominem?
Why is that funny? He obviously didn't receive much, or has greatly changed what he received to now only be loosely based on YMVT. It is undeniably very different.Also funny how you seem to imply that TWC is "loosely" based on VT yet William Cheung studied under Yip Man.
That has clearly not been claimed here.While you may not agree with the approach, your lack of agreement with how TWC, or any other lineage, does something does not make it wrong or in any way inferior to your approach.
TWC methods have been considered on their own, and criticisms have been purely technical.