Does he never downshift? He only uses his right hand, quite well, to shift up and down on the same side of the wheel.
The animation looks good. To shift he pretty much moves his hand forward so that the bottom of the palm rests on the wheel while the fingers are free to use the paddle. That how I do it at least.
That's the way the paddle shifter setup in WRC cars, you pull the lever toward to shift up, push it away to shift down.