Originally Posted by
Blind Wedjat
I think this is part of what the movie was trying to point out. Wakanda has a bunch of traditions for traditions sake that can be used against them by someone smart and determined enough.
Why should Killmonger just become king and Black Panther because he beat T'Challa in a fight? That's their tradition, but Killmonger did not have Wakanda in his best interests. A war with the rest of the world would have hurt them badly no matter how advanced they were. W'Kabi said as much that the world is catching up (and we can see it to be fair). But because Killmonger was of royal blood, challenged T'Challa and won, all of his commands had to be followed without question.
That's what I find interesting about how the movie ended, the way T'Challa's arc unfolded and the potential it sets up for the future. T'Challa having earned back the title of Black Panther and king of Wakanda (through combat and also having the right intentions) now has the opportunity to do something really important with the mantle outside of the tradition of "protector of Wakanda." He can turn the symbol of it into an even more powerful one with what he does for Wakanda and the rest of the world.
I think that's the direction Coogler seems to be going with. When you look at the parallels between T'Challa and Killmonger, and even T'Challa and T'Chaka, he seemed to be exploring "What does it mean to be Black Panther?"