Was Seth MacFarlane's Chris Brown-Rihanna joke "inappropriate"?

Why am I even asking that? I don't care if it was "inppropriate". In fact, I think the word "inappropriate" should be forever BANNED when talking about comedy.

I thought Seth did an okay job hosting. The jokes were funny, but waaaaay too much singing & dancing (yes, I know... that was the theme of the night). I just hate showtuney situations like that.

Anyway, here's Seth's joke -