Pointing out that the taco truck driver doesn't speak English well isn't bad, coming back from the truck and saying "he lives in America he should speak the language better" or something along those lines is mean and demeaning if it were to get back to him. It tiptoes the line of racism, it has the implication.
i understand what you are saying with the social implications, but at the same time he represented an organization that has hundreds of immigrants walk through the door every year and to say those comments were tone deaf is understating it to me.