I would agree. I'll look into it a bit more if its a problem but it seemed the first 20% was more like 40% of foot movement but the throttle wheel is an essentric so they may do that on purpose to make low positions more street friendly with the large opening, and then the last like 10% of pedal travel is like 60-100% TPS. This may be thru the design on the "pulley" but i just happened to catch it on the laptop screen.
Its snowy and cold up here so I will not be driving this anytime soon.
Just make sure your various TPS related items are not on/in that non-linear range. For instance, if you have your WOT determination in or around that spot you could get some unintended behavior. Same thing with EGO control, accel/decel, etc etc