I was interested to see that Mi Tierra does well in Little Village. It seems that Mi Tierra, like LaLo's, plays up or down to its audience somewhat. The LaLo's near Cermak Plaza in Berwyn is OK, and has a significantly Mexican American customer base. The LaLo's on the North Side are pretty awful, IME. Perhaps Mi Tierra is similar.
On a related note, on a lark and needing to get someone an emergency margarita, I visited Cesar's Home of the Killer Margarita at Clark and Belmont the other day. The menu is comically limited, but the food is better than it has to be. (This, I must emphasize, is faint praise at best.) I suppose the explanation is a modicum of pride held by the Mexican management and staff who mostly sell gallons of 'rita's to the boys and girls that just wanna have fun.
The reason I mention Ceasar's at all is this: the whole room is dominated by a beautiful, scathing mural depicting a group of noble, angry looking Mestizo militiamen eagerly pressing past some kind of security detail toward a group of debauched gueros and/or gringos sipping margaritas, obliviously. On the other wall is a mural representing hard working masa-mamas making tortillas out of sight of the profligate upper-caste.
I would call it subversive, but it is way too obvious to be that. It was one of the nicest ironies I've seen in a while, though.