Hum, no. The purpose of a principle is that if you follow it you will very likely get a good result.

Being easy to understand is nowhere on it. Why is it that everything must be dumbed down? If thousands of people can't get the principle, but it gets good results to the people that understand it, it is a good principle, and those thousands of people either study a bit or decide to live with their worsened condition.

If you take the GP's single paragraph that explains the principle and tries to use it to discuss a particular design, you will see that it's perfectly possible. The fact that people can't do the same if they read a paragraph less and stop at the name is not very relevant.