Heh, I've always loved the chaos bolt spell for better or worse. That said, enough is enough for me - I tire of having to re-learn my class and adjust my playstyle each time a major patch or expansion launches. I miss the old days, back when things changed from time to time but never enough to impact upon my personal preferences. With everything becoming more streamlined and linear, however...I just lack enthusiasm.
I'm not sure if anyone else feels the same way, but the solution to solving the various issues afflicting the warlock class does not reside in shifting iconic abilities from one talent tree to another.