Look at the surface area and the percentages of the population. That's what the article is about.
It's pretty clear that it's hard to live on even 100K as a family in the Bay Area, and if you look at the median incomes for most of the cities around the Bay Area they're nowhere near that.
I don't see how you counter that by naming off a few more rich microclimates.
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Also, I wrote the article, and I'm born and raised here. I didn't drive down a street and come up with this. I've been here for four decades, watching it change, and this is what I'm seeing. Sorry you didn't like it. :)