Yeah, but think of it this way... barely any of the pavilions in WS have rides, so if Disney REALLY wanted to do Wakanda, it wouldn't necessarily seem weird with BP not being there. It would be more about experiencing Wakanda rather than T'Challa himself.
That said, while I think it would work within the WS as presently constructed in a way, it would still be incredibly stupid and really ruin World Showcase.