Bravo suffered simply because he replaced Hart
No, Bravo was a fucking nightmare. In his first season he embarrassed himself more often than not when he put on the shirt. He went from one of the most respected goalkeepers in the world to a guy who literally couldn't save any shot with power on it. He improved in later seasons as a backup but never got criticised just because he replaced Hart. He got criticised because he was awful. His first season will go down forever as one of the worst goalkeeping seasons in Premier League history.