Quoted for truth. BW would have been best served as a secondary character who joined the team in AOU. She isn't and never really has been a main team member for any length of time. Her character simply isn't suited to being one of "Earth's Mightiest Heroes". She's a spy and an assassin. In EMH she was shown pretty true to form.
I mean I get why BW and Hawkeye were in the film, it's because they were previously introduced. But from a nostalgia standpoint, sorry it should have been Jan and Hank.