A lot of people were unhappy when Naughty Dog announced that the Uncharted 4 DLC will not feature Drake or Sully, two characters that have been in every Uncharted game. Fans felt like the game would not be Uncharted if those characters were missing but clear Naughty Dog knew where they wanted to take the game.
Naughty Dog wanted fans to experience the Uncharted universe without all the baggage and history of the characters. To put it simply, they wanted an almost blank slate. While some fans were doubtful that it was going to work at the start, a lot of people were more convinced as we got to see more of the DLC.
The good part about making a DLC that has nothing to do with the main story is that the developer gets to finish the main story without any loose end so fans won’t feel like they were left hanging.