To be fair, I'll support his own claims too.
What you meant by snapping without effort (and mainly the reason why you feel that the tablet is snappier)—is due the very light weight of the pen compared to the mouse and also considerably lower friction, thus allows you to easily increase the velocity of your movement. Even with a smaller mass, a significantly higher velocity may contribute to higher momentum, and thus making it snap easier.
There you go.
What you meant by snapping without effort (and mainly the reason why you feel that the tablet is snappier)—is due the very light weight of the pen compared to the mouse and also considerably lower friction, thus allows you to easily increase the velocity of your movement. Even with a smaller mass, a significantly higher velocity may contribute to higher momentum, and thus making it snap easier.
There you go.