I feel the main problem is honestly that the court of oryx isn't in a high traffic area... All strikes, most quests, and most zones take place the opposite direction so people don't go that direction unless they have the sole intent of doing court of oryx...if they would've place it somewhere with more foot traffic I feel more people would gladly pitch in on occasion... Honestly though I've never had a problem...I'll normally bring my own fireteam, or run t1 until people show up...