I look at it like this:-

The black guy in the advert is a real person. Had he been made-up to LOOK like a black guy, then YES - serious racism issue!!

I am certain that as a black guy, he is well aware of what the word 'racism' means. I am also certain that I didn't see him wearing and handcuffs in the advert and it's possibly safe to assume that he wasn't threatened with public execution if he refused to take part in the ad.

BTW, did you see the Chinese 'person' emerging from the washer? Isn't that a case of the Chinese actually taking the p*ss out of THEMSELVES?

Sure, there are 'racists' in China, but so what? Show me a country where there aren't any.

All harmless fun or an indication of something far more sinister?

In this case, harmless fun