Maybe because you are used to something else entirely. If you give it time, it might click. No guarantees, though. I would give it a legit chance if forehands are a big part of your game, or even if you do not forehand often but would like to implement them effectively, as once it starts to feel natural, you will not find a more effective forehand grip. It is actually really comfy once you get it down, because unlike the pistol grip, it does not torque your fingers laterally. Also, it uses the pad of your middle finger as the principle contact point instead of the side portion of it. Not to mention, the wrist likes to move up and down more than left and right. My grip puts the disc in line with the up and down motion. Makes it really easy to integrate the wrist, especially for short arm shots, which are from the elbow out. Not to mention, it accommodates all rim sizes. The same grip I use to throw something like a Buzzz...
...is the same grip I use to throw something like a Torrent. Does it get any easier? Or better?