I strongly agree that settings need to be specific, but I disagree that they are or should be "broadly representative". I think we need settings to be specific so we, the readers, can put ourselves there. That's part of the goal with fiction, right? To experience being someone else. So, instead of going to 'the store', your character should go to the Truhr family's bodega down on 39th Street, where they have pictures of their five kids taped on the old-fashioned cash register. etc. etc. Okay, that's silly, but you get the idea.
I really liked the second quote above. Omniscient description does often feel boring, but when you filter it through 1st-person or 3rd-person characters, it gets interesting. For example, is it ninety-five degrees Fahrenheit outside, or are rivulets of sweat sluicing down Tamara's back, making her want to rip off her wool-blend interview suit? And does she go into the bodega for a frosty beverage... Now I'm rambling. :) But, I think you get the idea.
So, keep sending Electric Spec your setting-laden stories.