I'm sorry if you are having trouble beating a sorc/sage that is spec'd Tele/Lightning and has to stand still and cast to do damage, the problem is you.
Let me simplify this for you..
Is a talent that is 6 levels up on a talent tree that stuns for 1.5 seconds and fills the resolve bar.. better or worse than a talent 4 levels up a talent tree that blinds for 3 seconds, is area of effect, up more often, and does not fill the resolve bar?
Where does that make sense? Move the talent if the nerf stays as is, and put something else in its place.