Seeing how small the foot-thing is, they might just have a momentary switch there, and it'll work too. I have an FSR sensor, so does Kickr.
I'd like to see how it brakes.
EDIT: Ok, so just read the whole thing. They do have momentary switches. Both feet must be on the switches to accelerate. Braking is done by lifting foot on either switches. Acceleration is not really variable like on FSR, you set the max speed with a different switch. It acts more like a cruise-control; kick to desired speed and then cruise. Pretty neat, you can actually call this a push/kick assist e-board.