probably its in how you interpret it,
the atricious guard your saying in handling probably doesnt get much defense or probably that league doesnt pay much attention to developing outside defense as a threat or lastly in that league probably they dont train much outside defense.
or another is his probably has better other skills such as jump shot, driving etc that could instead dribbling more take the ball already to what he wants to do.
another is how does the offense flow? and if he has good teammates that would be another, the defense probably isnt even considering him as a threat to have that kind of high rating.
just how i see it!