Just what Detroit needs, the most expensive grocery store ever, a Whole Funds. And like others have pointed out, "inner city" must mean "lots of minorities", because they have these here in Minneapolis and Saint Paul in the inner-city proper, but granted they are more upscale "whiter" neighborhoods. There's really no "first" about this that I could tell.
It's in a super indie neighborhood; maybe that's what they meant. This Whole Foods is sharing a parking lot with a cute little coffee shop called Starbucks and a community savings and loan who are calling themselves Bank of America. Never heard of them, but they seem nice.
I think the point is that it is good that people in Detroit can afford to shop at a Whole Foods (which is a really sad measure). I do have to say that Whole Food is a major sign of gentrification, at least that was my experience in DC.