The kill wall is a direct slap in the face of the raiding community. But the community can slap right back. Warlock and titan grenades that linger can be thrown into the sheild of the templar and force the NPC to walk itself off the edge. Is it lame? Yes it is lame that their team has provided us with broken encounters that can be reduced to pushing them off the edge. Yes It is lame that an NPC(hobgobs) can go where players cannot. Honestly vault of glass has been attacked by Bungie. Be it the loot, or the kill wall. They have made great strides to make VoG hard mode just not worth it.