I like to think of western music notation as not the most intuitive choice for a lot of popular styles of music. But it's kind of like when people talk about X programming language "making hard things possible".

It's like math notation. There is a canon of work over a very long period of time that can be used as a foundation for expressing many different intricate ideas in a compact way. And in the 20th century tons of non-traditional notation styles have been thrown into the western mix.