Is that an amateur proposal, or was this accepted by USPS, polished further and paid for? Based on the amount of text fillings, looks like the latter is true. In any way, what I see is highly impractical, and the brand book is far from complete. Here are some things I dislike about it:
-All caps. This is wrong, and it should be fairly obvious even to a child, when pointed out. Millions of people will see media based on it, and a generation will grow up, struggling to read all-caps price lists, all-caps footnotes and navigating all-caps menus on their smartphones. What's worse, is that they will subconsciously accept it as part of their lives and surroundings.
-Too much visual clutter: completely unjustified use of borders, underlines and dotted lines – also in between semantically same elements.
-What does "→" mean?
-Clickable elements are indistinguishable from statics on self-service terminals and smartphone apps. Footnotes are impractically small even for a HD screen.
Overall impression: somebody, truly oblivious of basic usability principles, thought that infographics (the Daily-Mail-grade ones) and UITableViews are cool, and built a company identity around them. And the other guys sold it.