Perhaps WGT got it correct for once.
If the little dot is supposed to be the club's point of contact, by moving it to the top (thus driving the ball into the ground with a wedge), you'd actually be putting MAXIMUM spin on the ball in the real world. Moving the dot to the bottom would be a "scoop" or "flop" shot with maximum height (which is NOT accurately depicted in this game).
Of course, an expert RW golfer would know that there is no such thing as "top spin" on a RW golf shot (with the exception of a well-struck putt or a "skull"). The laws of physics do not allow an orb with "top spin" to become airborne.