Aff AoE just feels clunky, and I guess you could say the nerf to Corruption really did it in for me. I can't see myself going Aff again on a fight that requires too much mass AoE, not when Demo and Destro feel smoother to perform that with.
And Havoc is like a fun perk! See that last mob sub-20%? Mouseover boss Havoc, SBURN FTW!
As for the gateway bug, it's obviously unintended and I'm sure it's been brought to their attention and they're (hopefully) working on a fix.