A new analysis of the effectiveness of sites from S. Spivak

I stumbled upon a little article today on the Composition according to the "new" method of analyzing the effectiveness of the site. in fact, it's all about the same: how can I increase my conversion? :) Key points:
- there is an end result that we want to achieve from the user
- before the user performs this action, he will make a few clicks on the site, getting to different sections, different pages
- if each section is assigned its own label and then divided by attendance and show it in color, it will be beautiful and probably effective

in the long run it all looks like this (picture again from the Composition):


well, actually, thoughts about all this joy:
to me personally, it’s not so clear to the end what to do after I see such a picture. well, you can block inside the main corridor that the user is following all the links to the "auxiliary" pages, and on the auxiliary pages put links to return to this corridor through the word. while it seems like it turns out:
1. auxiliary pages are used only for indexing by search engines and to attract traffic, i.e. exclusively as additional entry points, alternative to the main page
2. and, accordingly, the user gives a big red link in the center of each page “click here, pay money” - then, using this logic, everything will be built quite nicely :)

but then why do big content sites do? you can confine yourself to a simple business card of two pages: the main one is the coordinates of the company and a very superficial list of the products offered, and the second is the application form :))

PS
this is my first record, please do not judge strictly, since what's wrong :)