I watched these earlier in the day, or maybe it was yesterday.. I found it fascinating how easy it would be to misinterpret, despite the obvious amount of effort they put into making the videos. The intriquing bit is where they tell you to "roll your shoulder forward" another passage makes it clear that this move actually causes the outside ski to be pressured. They don't bother to explain that moving the shoulder forward is actually a trick to get the hips around to that side and move the weight to the outside ski; they just let it happen, The ski is "steered" because it is pressured and weighted on edge and that makes it turn, but it would be easy to see, with that rotating the shoulder forward, how it could be misinterpreted as an application of rotation carried through into the skis to "steer" them around (much like the inside ski is steered in the modern gliding wedge). Except that wouldn't work in those conditions. BTW. the wedge turn was at least as taught in this video a go-to move, move the shoulder forward in the direction you want to turn (because it puts your adz over the outside ski as you naturally compensate if you have any sense of balance).
The wedge turn is only a braking move, and not a go-there move, to people who learned it as a defensive braking move and the students they taught.(that's my opinion and I haven't be convinced otherwise yet - you're welcome to try).
That's not limited to the wedge as you know. Many people view turns as defensive - stopping themselves from going somewhere , stopping themselves from going too fast.
I don't understand what you're saying about the 1941 snowplow videos. It's a demo to copy, not to teach one how to teach. They clearly talk about steering the outside ski and keeping the outside knee foward to do so. They don't explain "steering" but it's fairly obvious - turning the ski to point it where you want to go.
Why wouldn't it work? I see no problem with it working.
I don't get why you consider that a go there turn - when you move left to turn right, and in a modern wedge turn with hard boots/bindings everything moves right to turn right.
Sorry, I meant to say the 1941 snow-plow turn is only a braking move, and not a go-there move, to people who learned it as a defensive braking move and the students they taught.(that's my opinion and I haven't be convinced otherwise yet - you're welcome to try).
4:18 of the second video makes it pretty clear (in ohter words) the pivoting transfers the weight to the outside ski. He is weighting an edged ski. What he doesn't explain, but what is clearly happening if you have ever weighted an edged ski, is that the "steering" of that pivoting works by weighting the outside ski, not by twisting it, but if you don't know how skis work. You could easily think he means to try and torque the ski around, instead of "steering" it via a pivot-induced weight transfer .