Just becasue it has a track doesn't mean it's not pulling, the saw wants to go in the direction the front of the blade is pointed.
If I drive a car and it's pulling right and I am driving perfectly straight my hands are acting as the track keeping it straight, doesn't mean its not pulling.
He is pushing the saw through a straight path where the blade is on an angle, we can all imagine it and we can all imagine the force on the person pushing that saw. It feels like the saw is pulling off the track a bit. In more severe cases some could call it binding.
I never took his statement to mean the saw rose up off the track and pulled right off the track.
I have had a TS 55 stop dead in a 1.25" hardwood cut because of this. The TS 75 has the power to go right through. Pushing this angled blade through the straight path forced by the track creates a pulling or pushing sensation. The kerf is going to end up being too wide, rough, even burned. The front of the blade is going to be off the line to the right and the back of the blade is going to be off the line to the left, not a good scenario.