Developes can only make assumptions. It's once the game is released to the public that they know whether it's good or not.
Sorry, but I refuse to believe that the developers behind Devil May Cry 2 got together and decided that the game was good enough to release to the public ... and believed that consumers might actually like it.
"As the days go by, we face the increasing inevitability that we are alone in a godless,
uninhabited, hostile and meaningless universe. Still, you've got to laugh, haven't you?"