This is a system that indicates the lack of information about why the current system (which, admittedly is a mess) is the way it is. This is removing Chesterson's fence without understand why it's there.
A point: one improvement to this system is if the tonic note is always 1. I don't hate the idea of number inside the notes, but as it is currently, its not only useless, but actively making things more difficult to parse.
Having the tonic, the 3rd, the 5th, the 7th... that might make things easier to sight-read. Might.
The current notation is a hodge-podge of compromises of rhythm, legibility, page to music ratio (efficiency of page turns), pitch range, and dynamics. Nothing in music can ever be 'perfect' (the cosmic joke). And without the history of how any why the current system came to be, 'disrupters' are just people who don't know their own ignorance. Even still, sometimes there is value added. Rare as that is.
> which, admittedly is a mess
Why is the current system a mess?