They buffed GG to kill radiant skin warlocks. Titans survive with high armour. Also, you can shoot grenades and rockets out of the air but with zero aim assist, and a quick moving target, it almost never happens. That is not even remotely viable as a solid play against them. And about Skull of Dire ahamkhara, I'll admit that I overlooked it, but even then, it has the same reasoning as FoH for not being broken, it's one time use and they have to give up Voidfang Vestments, Nothing Manacles, The Ram, Light Beyond Nemesis and any other armour they would choose. If the warlock could continue to chase you down, whilst throwing 6 additional nova bombs at you, you'd find me here advocating to nerf them as well. Plus the link you sent states that you can basically only counter it with 4 supers in the game. If your super is down, or you aren't the right subclass, then what do you do? Plus, the void bow is awful at stopping supers, you have to use it pre-emptively not on reaction, or you just die as well.