As a specific example of how the book opened my eyes to understanding architecture in a way I sure others have noticed, but never seen mentioned anywhere and is indirectly referenced in the excerpt I mentioned, commercial buildings frequently have “blueprints” right inside the front door called “fire alarm zone maps”; Google link below for examples:
https://www.google.com/search?q=fire+alarm+zone+maps&tbm=isc...
Other maps of comparable amounts of information include “fire evacuation maps” which are frequently on display in various areas depending on the type of building; Google link below for examples:
https://www.google.com/search?q=fire+evacuation+maps&tbm=isc...
While neither are complete blueprints, the maps frequently have information that’s not available; if you know what you’re doing, you can frequently even get blueprints.
To me, point of the book is introduce a way of thinking about architecture, not stay an update “how to guide” for physical security counter measures, red teams, etc.