[vintermann]

> They have a habit of solving problems that just aren’t problems for experienced readers, while causing problems for experienced readers.

Well, of course. They have invested a lot in the system as it is. But I've noticed even very basic changes that should not cause problems for already strong readers (e.g. a slightly thicker middle line) have zero chance at adoption, whereas changes that are not justified by didacticts (e.g. many composers inventing some quirky new way of expressing something) are.

I share your judgement that this system is poor, and that there are many poor notation systems proposed all the time, though.