You know your skiing better then me.
But my point is more that too many "instructor types" strive to make these perfect, 100% controlled, never lose form type of skiing...that frankly is in reality static, slow, boring, low performance type of skiing. Dont be afraid to get bent out of shape. If you never get bent out of shape....you are not trying hard enough. That is not to say one should be getting bent out of shape every 5 minutes...but.....if you are never losing form - that is likely worse, and will hinder your progress greatley.
Perfect linked turns is perfectly fine if you intend to ski perfectly groomed slopes at perfectly even horizontal attitudes (perfectly consistent fall line). And they're great for demonstrating rhythm to skiers that can't link 2 turns. But they're just one way of getting down the hill, and there are so many other ways to choose. I think beginning and intermediate skiers who focus too exclusively on perfect turns or "carving" can limit themselves just as badly as the self-taught heel-pusher limits himself.
I'd rather see beginning and intermediate skiers work on an automatic, robot-like consistency of hand position range. At their skiing speeds, hands out front can be maintained all the time. As speeds pick up and turn forces increase, they can learn a more open/wide hand position through no-poles runs where they focus on GS turns. Last season starting at week 3 of a 6-week program I used 18-24" length heavy synthetic ribbon pieces with the kids I taught, they had to hold the ribbon between their two closed hands, with the hands relatively parallel as if they were holding poles naturally for skiing. We would go down runs like this. At the end of the 6 weeks nearly all of the kids had improved hand discipline in their skiing, and were aware of it when we talked about skiing. I considered it a success!