Dude basically wants to see his country south Africa represented in the flick
He isn't being transparent. The South Korea scene is based in South Korea so I'm not sure why he has a problem with it.
Like be happy you have SA actors in the flick and they made the Wakandan language an SA language which it wasn't even a thing in the comics.
Edit: Actually using the SA language kind of goes against what the language should be as well. Especially based on location. So yea thats something.
Now he's wrong to assume that they should film the entire movie in Africa, especially S. Africa.
With that said the South Korea stuff is kind of a poor excuse. That was primarily a financial decision.
Its all business so its all good, but I'm not buying that the story called for it.
Just like they filmed in Seoul for Age of Ultron its good for business
Like I said earlier I think Infinity War was the main reason they couldn't go to Africa. Would have been a scheduling nightmare and difficult to keep Wakanda consistent.