For me passive versus active is about drawing an arbitrary line in the sand. I see it as a blending of how much energy outside of ourselves we want to harness, versus how much of our own energy we want to put into the equation. It is a sliding scale as I see it. One can't exist without the other.
Yes, the steeps require a shorter turn radius. Yes, you will rotate the skis. At issue is the "how". It has been reported in various places that the phantom move can be used in such a way as to create a hockey stop. That defines rotation.
It is also reported that pivot slips can be used to create a hockey stop.
That implies that both techniques will be effective at shortening turn radius. There is no question of that.
However, the tension within the musculature differs in a very real way, and what is at issue are two things:
1) whether or not we can create a definition that identifies which type of rotation we are talking about
2) whether it is meaningful to do so.
I believe it is meaningful, and there is a substantive difference between the two.