Seriously, over the last 10 months I've seen CK explain the Clean and Distortion sense knobs/settings over and over again
No. He is just repeating the same one explanation over and over again. That doesn't help. And making jokes about those who are still unclear about "these two knobs" won't help either.
Unless with high-gain sounds the word "clean sounds" and "distorted sounds" just don't work. On a well balanced crunch sound there is always both: clean and distorted. In the attac phase most of the sound is distorted and at the end of the tone it gets more and more clean. And even in the clean phase there is always a bit of grit left over.
I personally have found a way how to deal with these "two knobs", I trust my ears and forget all those words. And I would recomend others to do the same.