Yep, I've read that one before (applied to mountain bikes as well as skis). It's amusingly clever...but untrue.
I'm not quite sure where the confusion stems from.
If you want to ski the terrain in your video working on race-oriented carving and you want to do it well, You'll want a powerful race room (or race ready) ski, race plates, heavy metal binding with boots to match.
If you want to the sort of terrain in the videos of Bushwacka and his crew...you'll want something else.
There is no confusion. I posted the comment in response to the Elan Amphibio.
The point is that this day in age, an 'all-mountain' ski is going to be a compromise at everything because there are skis out there specifically designed for certain terrain, and even conditions. Even you said it above, you choose different skis for different tasks - specialized skis. The statement is perfectly true.
I'm coming to appreciate the limits of video-that girl can ski--and I bet, over a long day in the trees and bumps of Stowe (or anywhere else) she'd put a beatdown on just about every poster here. And her ski choice would help her do it.
Speak for yourself. Not everyone. If ski choice is helping her, she's choosing a tool for the task and in this case it isn't an all-mountain ski.