OK, first of all, let's forget the "camp" stuff!! ...who cares! Second, I'm not an instructor (like most that are responding to you here), but just another average skier, so disqualify my opinions as you see fit
After rereading your quote of Arcmeister, I still don't think he stated one as being more or less important than the other. Just my opinion, and hopefully he'll jump in and clarify.
Personally, I don't think one is more or less important. And, I don't think there is one way to turn or ski. Learn it all! Is steering being overemphasized? I don't see it that way. I know that I have been to three EpicSki Academies in the past two years and have worked on a lot of different skills, but the way I blend them is up to me. As Arcmeister described, you get different results depending on how you blend them - and they are all, correct!
As far as your "need to have it logically explained programmers mind": Maybe think of it more along the lines of "If, Elseif, Else" evaluations, where different processes are executed depending on the existing conditions
Again, there is no ONE answer!
In regards to what we see in those racers, well, I guess it's a pointless discussion unless we're both watching the same run. Certainly their goal is to carve the cleanest fastest arc...but, that is not always an option.