It's not true that it was a flaw in the movie though.
She clearly loved her husband but she knew the future and traditions of her culture/way of life/nation was more important in context.
Had BP brutally killed Klaw with cameras rolling it would have added more fuel to fire about the "savagery" of africans - something Klaw was telling Killmonger that Wakandans are.
They had the resources to bring klaw back and kill him discreetly or in front of Wakandans.
With respect to her husband, he was willing to defy everything they believed in because of an emotional passion related to the death of his parents. Killmonger was technically NOT the king since his action to throw T'Challa off the waterfall did not kill him.
Even with this info, her husband chose to disregard the truth and call his squad to attack T'Challa. That was some fukked up shyt.
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Side note: there was no "black on black" crime allegory in this movie at all. When racists try to claim "black on black crime" is some type of counter point to subjugation, it's specifically because of the
senselessness of the violence or actions.
Not one violent action by a black character was
senseless. Even Killmonger - as off base as he was in the grand scheme of things - had a purpose to his actions.
Everything that
@Big Boda (BFM) said - who is this nikka, anyway? - was a poor analysis.
Next.