Yes, she is a part of the problem when she gets involved with the production process. I'm not sure how much influence an author carries within the juggernaut these films have become in Hollywood, but it's still an issue I've had even when the first film came out when Katniss, Gale, and Haymitch were all portrayed by white actors. So now film continuity for the sake of it takes on more importance than actually adhering to the books