Yes, that's what is so troubling about Kenny. I mean, if you are starting a life with someone who is Mexican, you live in Florida (which has a huge Hispanic / Spanish influence if you want to seek it out), and know that you are moving to Mexico (a country that speaks Spanish), why wouldn't you invest the time and energy to learn the basics before heading there? Seems a little dismissive of Armando's culture. Kenny is probably used to running his own show.
But then again, that seems to be a running theme on this franchise!