I'm guessing he is referring to the school's stupid response as being funny, not the actual event. When I first read it, I thought the school is implying it didn't happen on their campus, but some other campus, when clearly the photos show it at their school. That is somewhat humorous if that is what the school is claiming. The event itself is incredibly insulting, no question.

A similar thing happened out here at a high school in Arizona (Apache Junction). A white student took down the Mexican flag that was put up in place of the American Flag and burned it. I think he was expelled and nearly was brought up on arson charges. Unbelievable.