I have no problems slipping it into my pocket. But if you have tighter pants or smaller pockets I could understand that complaint.
It actually makes the phone sit more flat on the desk. Without it, the camera bump makes the phone wobble (I don’t use a case).
Plus, it stops the phone from being scratched by being placed or slid across a horizontal surface.
Like I said, try it before you knock it. It’s only a $10 investment and they probably take returns.