Because whenever I mention how Planet Vegeta was destroyed people say " Oh, ThAt SoUnDs LiKe SuPeRmAn". Also, I'm a little salty that Beerus sent Freeza to destroy the planet on such a whim, grew a connection to Goku and Vegeta yet didn't have the drafon balls to tell them he's the reason their entire race is dead and their home planet is gone.