Its different for Americans, for obvious reasons. The issue for many would be the face painting. I don't want to imply that only american's have understandings of race, but Black Face (white people with black face paint) connotes a specific time when black entertainers were disallowed. Instead, white people would wear Black face when they wanted to portray black people. Of course, the only time they would want to do so is to satirize, stereotype, and mock. Its a shameful past, and I don't like to see that unfortunate history disrespected.
Like we have pointed out, the difference of course is between tradition of one culture and the perspectives of another. I was taken aback by the image because of my background, but understand the different perspectives.
Implicit racism is a very real and very sensitive issue still for many of us, and many may overreact. Still, I prefer an overreaction than no reaction