Not everyone that owns a Ps4 owned a Ps3. So they haven't played Uncharted, The Last of Us, God of War 3, ect.
Remasters are created for new people to experience older games.
If you don't want to play the game then don't buy it. Sheesh.
There is literally nothing negative about remasters. The original developer almost never takes time to create a remaster. They hand it off to a lesser known group who probably benefits from the experience.
Stop complaining you silly people.