You're not missing anything, Ray. While most of the skiers in the "movies" in that kind of terrain are using very athletic, aggressive hop turns, there are a FEW who make smoother, rounder, "offensive" turns--usually.
Some terrain, of course, really can't be skied in control without hop turns. Extremely narrow avalanche chutes, for example, simply don't have enough width for anything but a hop, pivot the skis 180 degrees, and land on locked edges. Of course, even here, there are those skiers who make the "hop" with minimal exertion, simply letting go of the mountain and pivoting the skis the other way with their feet and legs. And there are those who really jump straight up and throw the skis around with their whole bodies, expending a huge amount of energy.
I'll probably get in trouble for this statement, but I'll say it anyway. There are many skiers who ski the steepest, gnarliest stuff, and appear in the "movies," with technically poor--or should I just say "inefficient"--movements and skills. And there are others who combine technical excellence with the required athleticism--and really make it look "easy"!
Interestingly, the ones who make something look "hard" are often the ones many people think must be the best--because they are doing something so obviously difficult, strenuous, athletic, and dangerous! Skiers who make it look really easy are not often the ones getting the hoots and hollers from the chairlift. If you can make the "extreme" look effortless, many won't notice--or buy your movie.