@lewm, lets see if we can sort this out.
In all cases when you increase VTA by lifting the back of the head shell you have to be raising the pivot unless you bend the tonearm just behind the head shell to increase VTA that way. Do that in your head. So now you have a very high VTA and a bent tonearm with it's pivot point at record level. Now run it around 360 degrees and draw a circle. It is the same circle with a very slightly shorter radius. The translocation of the stylus is exactly the same as when the arm was straight. WOW does not change until you move the center of the circle.
Yes, there are a few errors in the video the worst being the discussion on anti skating. But, it is highly instructional and his methods are fairly easy for people to grasp like the difference between stable and neutral balance.