But isn't that what happens in some other tones? Why is not a problem with, say, F? There you have some whites and some blacks.
Imagine you are playing a song in C and then you are told to play it in C# or D. That's a big change in the classic layout but a piece of cake in the new one.
What is a mess is learning every single chord/scale in 12 different forms. How many mistakes have you made changing from one tone to another? Hundreds? Thousands?
With this new layout you only learn 2 ways which are symmetric.
Don't you see the extreme simplification of chords and scales in this layout?