It is the core issue of the game, that the story line itself does not really support real cooperative play. You are just a bunch of random dudes without a real common goal, overall you also kind of have to compete with those 'teammates' for the divine spot.
True, except you never actually have to compete for the diving spot like the story line suggests. Your teammates just yield it to you after the last fight. Even worse, after you get to divine status the game ends. All that hard work for nothing but an achievement...
