While Aaron’s never been shy of weirding thr hatchet (see what he did to Coulson); the Past BP being murked (and the complete exclusion of any Panthers from the other legacies in the time travel arc) does more or less match up with Ridley turbo commuting to treating T’Challa as the unholy Habsburg jawed lovechild of 2000’s Batdick and Charles I/Louise XVI/Nicholas II so I get the impression Aaron had at least some of his Black Panther plans yoinked out from under him.
Conversely, I got the impression McKay pulled rank on Ridley re where T’Challa ended up by putting on his Avengers roster (the one seemingly charged with digesting Miracleman)
Edit:
Have T’Challa and Peter ever had any good team-ups outside the actual team books?