Now that I think of it, this move on Disney/Marvel to fire Gunn actually comes from a long line of treating directors like crap, they fired Patty Jenkins from Thor 2, Edgar Wright left Ant-Man because of creative differences, they butchered Jon Favreau Iron Man 2 (he just accepted it though) and now they fire Gunn for fairly nebulous circumstances. Its almost as if that company treats its creators like trash?
Actors with an actual history of abuse get to stay because, well, their the people the audience recognizes.