Whole Foods doesn't seem to have a lot of trouble setting up shop in more affluent Chicago neighborhoods.
Moreover: people who live in Hyde Park do not as a general rule drive into Englewood for groceries (non-Chicagoans: Hyde Park is an upper class white college town stronghold in the predominantly black south side, and Englewood has a reputation as one of the most dangerous areas in the city).
I'm also having a hard time imagining anyone getting on the Dan Ryan to get groceries, given that there's a giant Whole Foods right at the intersection of the Ryan and the Ike.
If Whole Foods wanted to light up the upper/middle class south side, there are less "interesting" places to park one; Chatham, maybe, for instance. Auburn/Gresham.
Regardless, I'm glad they didn't stick it in Beverly. That map of Whole Foodses in Chicago would have been pretty damning.