I have a lot of sympathy with the columnist's viewpoint. The ability to live in an urban neighborhood shouldn't be a class privilege, though it's going to be a huge fight to prevent that. The displacement of artists and musicians is hardly a good thing for either the people themselves or the city.
At the same time, I can't help wondering if some of this isn't just an accidental byproduct of how city borders are drawn in the Bay Area. In New York, or Chicago, or Los Angeles (and some other cities too), the neighborhoods which are like Oakland or Berkeley would be part of the big city, not separate municipalities. Musicians and artists live all over those cities, and those who live outside the center can hop a bus or train and get to it. They remain New Yorkers or Chicagoans or Angelenos, but because San Francisco is a separate city, Oakland residents are seen as completely different.