I was thinking the same question, Bailamos. I was also wondering if the other student is doing the same dance. Inappropriate can mean a lot of different things.
It took me a while to be able to figure out which tempo of music fit which dance. I remember, early in my dancing days, suggesting a song for a bolero showcase that wasn't a good fit for bolero at all. It was way too slow, too slow to even adjust with the sound system, without making it sound like a caricature of itself. I was miffed when he dismissed my suggestion out of hand.
I was such a wise-rump. One. I wasn't good at bolero and really had no business doing a bolero showcase. I had little control and my muscles were weak. Two. The song wasn't good for bolero, either. When I got miffed (I guess it showed on my face) my teacher let me do a run through of the song attempting bolero. 30 seconds of (humiliating) demonstration was worth a thousand words. *shrug*
I didn't care for his behavior at the time, but he made his point. *shrug*