Tried doing a party with my EB. At first we thought maybe the trophy points stack (obvious reason to party up), but they don't.
Then we thought maybe if one person gets the goal and the other doesn't, that'll count for both?
Nope.
So... what's the point of being able to party? Why isn't this just a solo instance so I don't have to have a plethora of other characters blocking my near handicapped camera angles?