Unfortunately this is the case, the character and the person in his corner died with chad. The fact that It was Chad who pushed for Wakandans to not have a British accent, or how casually T'Challas core traits and feats (being the one to push to Open Wakanda, and figuring out how to make VB inert) were given to supporting cast and his super genius was heavily downplayed in favor of give Shuri something to do, and finally using chads RL death as a plot point in WF, just proves that T'Challa wont thrive or be important until a bee creative team is out together to do him Right and comic accurate