They mentioned upcoming balance adjustments. Don't be so quick to doom-call.
I'll take less survivability any day if it means I can actually properly do damage. I would like a baseline AoE as destruction though, or at least no windup on Rain of Fire considering how pathetic it is. Playing any warlock spec in dungeons feels like an exercise in frustration because no matter what spec you play you're missing some vital tool that every other class has but you.