Lets say a movie previously would have shown 3 out of 5 stars. Where does that fit in with the binary thumbs up/down? I think they are just doing this because

Lets say a movie previously would have shown 3 out of 5 stars. Where does that fit in with the binary thumbs up/down? I think they are just doing this because recently some actors movies are being attacked with 1 star ratings for being politically vocal.