I'm a car fan, so I'd rather reward drivers for optimal behaviors vs broad car-reductions. I'll probably turn out to be on the wrong side, but maybe we'll find a good compromise.
In my region of the world if someone creeps and leaves a wide gap between them and the next vehicle, eventually someone is bound to change lanes to occupy that space out of the perception that it somehow will help them get ahead in traffic.
-Everyone's creep speed was the same.
-No one figured it would be more beneficial for them slip into that gap.