I think you are buying into the local media's take on Boston dining at face value. Reading The Improper and Boston Magazine will brainwash you into believing your quote is true. For me, the people that follow the crowd are the suburbans who come into the South End and dine at Stella or Stephi's on Tremont to be seen out. These are the people that skim the Improper or BM and decide where to eat. There are a ton of great restaurants that have been chugging along but are not owned by Barbara Lynch or Ken Oringer, and do not get the lion's share of press around these parts. Not to mention, there is also a huge Chowhound and Grub Street community spreading the word about noteworthy places.
That's a good point - I may be generalizing. I don't read the the Improper or Boston Mag, I drew those conclusions based off of what I hear and what I see. It's tough to generalize this kind of thing - everyone needs to eat!