The issue unfortunately always falls back to familiarity - It's like spelling reform or DVORAK keyboards. You can create a thousand compelling arguments why new system X is better than the old clunker we're all forced to use but the fact of the matter is that you'll still have to read music the old way to interact with the rest of the world. Millions of musicians, including myself, read music as naturally as reading the written word. It's a functionally impossible ask to change that paradigm. Even learning bass clef for me as a previously treble clef only player took several years of focused and targeted practice to attain equal facility with both.