That's because the Chevyheads at Mad Electrical propose a halfаѕѕеd "solution" that addresses 1/2 the problem, at best. The way you (Crackedback) and I do it addresses the whole problem, all the way. I long ago stopped counting the number of times I've had someone write to me along the lines of "I did the Mad Electrical upgrade and I still have the following problems…". It's often enough that I keep canned text describing the actual fixes and how to do them.
It's really not more difficult or costly to do it right, and yet people who know enough to know better keep on parrotting "Mad Electrical, Mad Electrical, Mad Electrical".