It looks complicated.
This is one of many typical obstacles. A lack of an open mind, curiousness towards new ways other then your own, quickly judging something based on the first impression without trying to understand it, etc. Yes, isolating a page from the middle of the method may look complicated at first sight. If you take a page from a Rachmaninoff concerto and show to a 7 year old, he will also think it looks complicated.
Please bare in mind for what reason the method exists. Of course there are pupils who naturally understand "regular" notation quickly. But for the majority of teachers who work in schools with anything from 20-50 pupils a week, one knows there are many who struggle, and would clearly benefit from a child friendly notation system, where the distractions and confusions are reduced.
The video only gives a very compressed view of the method, of course the path from the simplest notation to regular is smooth, and only introduces one new element per piece.
I don't apologise for saying this, but if you have students who can't read simple notation, then either you're not teaching them properly or there is something seriously wrong.
Im happy you have such success with your students! It would be very interesting to hear about your methods, and how you are able to teach notation with such ease to your beginning piano players!
This method is based upon some 20 years of teaching experience, and is an attempt to integrate a lot of the best ideas from various schools. The idea of haptic orientation, starting off on the black keys to develop a natural hand position, introduction of improvisation, composing your own little pieces, and many other elements. One of the most interesting thing for us, the teachers using this method, is how its perceived by people who know absolutely nothing about it, and how they judge it based on first impressions. So far so good, eh?

In "excellent" results - what are the results, of what goals, and how do you define excellent, and measured or assessed how?
Good question! With results I would think of it as how well and how quickly a young pupil is able to read music well enough to be able to learn a piece on his own. Myself, trying out different methods on different pupils, found that this one proved most efficient not only to those who learned quickly, but those who struggled.
it's not useless to try to develope new methods.
Thank you outin, very nice to see someone with these kind of opinions!