True, but this is South Africa, so it's very unlikely serving staff would be anything but Black. A wealthy Black person getting married would likely have all Black servers as well. I am from the Caribbean and all servants there are Black, including in other Black peoples' homes. Having Black serving staff isn't a racist act in and of itself - it provides needed employment to people - but it does point to troubling racialized class/wealth/education gaps in a country. And pictures like that are everywhere in former colonies as well. Had they had a normal wedding with no theme, it would have been a wealthy white couple having a nice wedding with Black staff, which happens everywhere - probably even in the US. The couple doesn't really control the staff at the venue. The issue for me is really just the theme and the romanticization of an issue that is about the denial of humanity and the telling of lies about history.
Though if they are responsible for putting the red fezzes on the servants then maybe there is more to it than that. As to qualifying racism, yes, I agree with you that that was an error on my part and I didn't really mean it literally.
Get used to me. Black, confident, cocky; my name, not yours; my religion, not yours; my goals, my own; get used to me. -Muhammad Ali