At first it seems like it, but the screen is there to represent the ANGLE OF THE RACKET'S HIT SURFACE when hitting the ball. It does NOT represent the swing path.
Federer's racket angle is usually 79 degrees and Nadal's is 76 degrees at the ball strike. TopspinPro temporarily removes the swing momentum in order to "lock in" the same biomechanics in your muscle memory. You automatically add the swing torque to your swing in practice and matches.
The top and bottom screens of the TopspinPro are attached independently, so it's common to take the top panel off once you've established the correct technique - allowing you to hit the ball through more.