Don't see the problem. I have a Sage myself and a lot of you are simply complaining for the sake of doing so. It is an instant ability and no way is it difficult to turn your camera to face your enemy for a milli-second to cast the ability and then turn.
Hell they even reduced the CD of Force Speed to help with this.
Complain more kids.
a 120 degree cone doesn't equal an AoE knockback. the amount of "skill" required is irrelevant. yeah. have fun with that.