All true, agreed. I am giving Karol the benefit of the doubt because, well, he's Chris Karol. I am assuming a lot to post the picture, 1, that this picture represents the whole turn well, which it very well may, and 2, that people know who he is. If anyone doesn't know, he's a true veteran, among the ranks of Mark Heingartner, Andy Coghlan, etc, and a product of the ice coast.
Why I think it's "perfect" technique. I didn't go into this at first because I wanted to see if anyone was interested. Keep in mind there is a difference between technique and style. Here ya go.
His hips are down and in and facing I'd say about 1 o'clock (nose of board = 12). His edge angle is a result of his hips being dropped into the carve.
His shoulders and head are level - this improves balance. He is not bending at the waist towards his toeside edge. He is not reaching for the snow. His upper body is stacked over his c.o.g. It is not folded over the nose of the board. This also improves balance. This position is just generally "natural".
He is poised and ready for anything, he can absorb terrain with his knees and ankles while keeping a quiet upper body. In this position all options are open to him. He could draw the carve out and maybe lay one out, or he could snap a quick cross-under transition from the waist down and instantly be in good heelside position.
When you aren't rotated towards the toeside edge, you can make quick edge changes with the ankles and knees, and be in heelside position in much less time. Also, when you are turned towards the toeside edge, you are more prone to bend at the waist and reach for the snow if your balance is disturbed.
Now of course there are plenty of people who don't ride like this, and go for more style. They can have a lot of fun and look great, and make their style work very well - in many cases just as well. That is fabulous, but it is irrelevant. My point is that someone learning to carve should try to emulate perfect technique rather than cool style.
I said in another thread that learning to carve is like learning a musical instrument. It is possible to get very good and have a lot of fun relatively quickly by learning the basics and then just learning to play songs. But true mastery comes from learning the theory first and developing your own style second.
-Jack