Abandon hope. They haven't fixed warlocks problems in years. Chaos accelerant still pauses super regen. Nova still hits walls behind you. Those have been known issues for years. Bungie hates warlocks. Abandon hope or switch to the other classes that are basically better warlocks now.
They are not gonna touch it buddy. Much as I want them to tweak Chaos Reach, they simply are not going to. Nova Bomb for me lately is just off(could be just me). Was in gambit, a primevil and adds were up and I cast Nova Bomb(cataclysm) and literally watched it soar over all the enemies and my teammates turned around and looked at me like wtf just happened.