Doom war is a garbage story. It was basically "Doom outsmarts T'Challa, abd the marvel heroes and gets off the hook with a slap on the wrist" while T'Challa is worse for wear after the event. It is bot a good story. Mayberry was fanboying so hard that really the only thing Doom lost was money, not his own soldiers, he didn't get the beat down of a lifetime, nothing. Killed S'Yan, got oadt bast, took over Wakanda, beat the hell out of Tchalla and forced him to make Vibranium inert, and got a thank you for the ass whooping from him as well.
So tell me, how do you adapt that to the mcu? So much would have to be changed to make it not isht. Black panther villains need the revamp because they are interesting and have potential, and they are CONTROLLED
by the BP mythos. I guarantee all these folks saying Doom or Namor need to be used would be up in arms when The logical conclusion happened and those characters die. Either they die or you've assassinated the BP mythos for not having T'Challa do what is necessary and letting them get off