Screenplays are not meant to be read, they're meant to be understood and produced. Your argument is akin to saying that blueprints are too complicated for the average person, therefore they should be changed. They're not meant to be understood by the average person, they're meant to be understood by industry professionals. Just because you find it less than readable doesn't make it so. Those of us who know what we're doing with it think it's just fine.
I'm sorry you don't find them easily readable, but they're really not meant for you.