I wondered if their usage of 'Latino' in this instance is a nod to political correctness but then realized that they are simply using it as a term that is a little broader than 'Mexican,' a term that could also include restaurants that focused on food from any Latin American region.
UPDATE: Gustavo Arellano, the author of the "61 Best" article has just e-mailed me:
The 61 is a completely random number—I could’ve gone on, but didn’t. As for "political correctness"...I take it you don’t read the Weekly much?
Yeah, the whole "political correctness" thing was a thought that came and went very quickly. And I like the number 61. Who says that the number of items in a list has to be a multiple of 5?
NEW UPDATE: I've removed the link as it doesn't seem to be working anymore. If anybody can point me to a properly working link please do so.
LATEST UPDATE: Gustavo has sent me a permanent link.