Right. Comparing a shopping mall to a city is almost as bad as Gladwell comparing a Trailblazer to a Boxster.
Yes it is a mall, but it takes this form mainly b/c SJ lacks proper city streets, with thriving retail, where you can actually enjoy walking, meeting people, dining, working, and shopping.
You don't have to go out of the country to see where proper urban areas mixed with retail can be great enviroment. Go to Boston's Fenaul Hall, or Harvard sq. where there is a very healthy mix of PUBLIC space, retail and shopping, some offices, and condos or houses.
If people did city planing in a good way, these garish malls would be superflous.