I think the more the actor lets you know what he thinks of the character, the less the audience cares - like a comedian who laughs at his own jokes.
When we try to write a pop song, we go for standard pop arrangements, even to the point where we will go to the key change at the end, which is really cheesy.
The fact that that's the difference between Mexicans and Cubans is pronounced. It's so immediately recognizable, the way a Cuban speaks, the way a Cuban moves the hands.

