If you aren't going to have much of a story for players to follow, then you need to supplement that with good gameplay, something Destiny lacks. Destiny gameplay is extremely repetitive and eventually becomes boring. Not only that, but Bungie promised us an intriguing story in the pre-alpha phase which was never delivered. With a $500 million budget, you would expect such a highly regarded company such as Bungie to at least create a passable story.