It's the newest thing that baddies want to bitch about. Can't complain about Sunbreakers and Pulse rifles anymore so now it's complain about firebolt+touch of flame+viking funeral. To me it's a good strategy, giving up a longer super and double nades to be able to take an enemy out of the fight for a while is a damn good plan. (PS: I use Void Walker in PVP on my warlock).