My 2 cents for beginners, most of these are covered in the article: 1. Get a flying-v or CamRock - makes turning easier and will hold an edge better until you figure out how to carve. 2. Don't put your feet perpendicular to the board, you want some angle, 30° Front, 15° Back. It will make it easier to square your shoulders down the hill and get your weight on the front of your edge. 3. Start on a Blue slope. Seriousl…
At the same time, I was living in the Midwest a few years, and the only black diamond I found honestly wasn't even as steep or interesting as the intro blue square I mentioned before.
So, your advice might be accurate in context of a beginner mountain, but at many resorts blue diamonds are best left to intermediates only.