Because Hunters are considered useless in the raid by a lot (besides the Crota fight) and 9/10 times when someone dies in a raid all you hear is "don't worry I got self Rez" and that pisses hunters off because those scrubs take their spots. I do like the Voidwalker a lot. Fun class to use all around but 90% of warlocks are self reviving scrubs. Hate those losers in roc because they don't even use their super and make orbs. Honestly why bother saving your self Rez in a level 26 strike with revives enabled -_-