An interesting question would be: after 40+ years, what happened? Has the book positively impacted how we build homes, neighborhoods, cities? (I'd say very little)
Personally, I've never been able to take him seriously enough to work up the patience to analyse his work to anything like that level of depth. His project is hubristic.
As for hubris, what is hubristic about trying to figure out how to build well?
But today we are all about status. We think what we possess is who we are. This is a lie created by marketing. But it's very hard to change this in our cultures.
We now see movements like the tiny house movement, minimalists, healthy food movement and so on.
Imho those are all anty riactions to the marketing we are now hearing for years.
So even if Christopher is right about how to build it can be very hard to change the way we think (about building).