Analogical reasoning is always iffy and even more so in ski instruction. Many times I've been baffled on the slopes as a student by analogies like the color one. To connect to another current thread, I didn't feel I was getting my money's worth from those lessons.
Here's an example that runs the other way. Consider 3 of the most common and vital-to-life elements: Hydrogen, Carbon, and Nitrogen. Mixing the first two together produces an array of hydrocarbons without which modern life could not exist. Blend them this way and that and good things happen. Now, add the 3rd element in equal proportions with the first two and you get Hydrogen Cyanide, a deadly toxin. If you followed this analogy, you'd conclude that mixing too many things together can be bad for your skiing. Of couse, analogical reasoning is always iffy, especially in ski instruction.