No this article has merely highlighted that when you do design things you have to improve it — like group things when it gets too cluttered. The designs and thoughts are simple discoveries one makes when making diagrams. As one can tell these designs are bare minimum blocks connected by lines and grouped visually because it gets crowded.

Part 2 is about adding colors and yet more things to this current design that are discoverable by using any existing drawing tool (draw.io, lucid, figma, even MS Paint).