Honestly I don't know if you are serious or not, but I'm 11 hours into the game and I still haven't done 5% of the main quest, side quests alone are enough to keep me playing. In 11 hours I could do everything from getting the ship, to killing Oryx, the 3 raids, 3 night falls, and still have time to run the 3 heroics, that how much pve matters in this game.