I'm not an a musician by most measures, and definitely not an experienced one. I lack exactly training and experience, so my understanding of music notation comes from the same kind of observations as the post author - only over a longer time and in the context of playing many instruments badly. So I don't think I drank any cool aid.

So, my comment is a response to the specific points they made. Yes, there may be cargo culture around it, and certainly the system isn't perfect. But their examples are non-examples of that.