Its disliked for a variety of reasons: The weapons are the worst group of raid weapons in the game. The raid exotic is the worst raid exotic in the game, given that its situational and only useful at 2 points within the raid. At the time it came out, it was the only relevant raid, and it took forever to level up given the old infusion system. So people ran it a lot and got very sick of it. Challenging is good for a while, but it just becomes punishing when its the only thing to run to elevate your gear score at a snails pace. A little too based on mechanics. Some mechanics is good, but dying on the last cycle because someone jumped a little to early is a little much. Also it was pretty glitchy. Dying from the sword through the ground when you aren't in the bubble is pretty ridiculous, teleporting ogres, dying smack dab in the middle of the protection bubble for no reason, etc.