the allegations were absurd? I read up on this, the women who own the cart themselves talked about how while on a trip to Mexico they badgered local women into talking about their tortilla making technique and basically invaded their privacy. "they didn't say they badgered them!" of course they didn't, most people will use softer language if they feel their actions might be perceived as bad, that's just human nature.
I'm not saying only Mexicans can make tortillas (and I say this as a Mexican), that's not the issue. there are plenty of recipes and videos on the internet about how to make them, and if these women took a class or had some sort of apprenticeship with or even friendly neighbors with one of these tortilla making women it'd be a very different story. but that's not what happened here, they tried to take someone else's recipe and profit off of it. if they stole a recipe from a local restaurant we'd be talking about things like "trade secrets" but that's not even what happened from a legal standpoint.