We didn't make the original claim that the elbow idea from SNT is universal in YM lineages.
So far, people have demonstrated that it is not.
I actually agreed with you that the elbow idea isn't so central in most Wing Chun as you have described for WSLVT. I simply pointed out that at least one area where most other versions of Wing Chun do have the same idea of the elbow as the driver is when doing the "excluding" or "cutting" punch. And you have responded by doing your best to prove even that one little tidbit is wrong, to the point of denying what I was doing and what I described in my video example. Same old song, different thread.