[Yoda]

...look at those Swingvisions and any that are out there. Typically the clubface is pretty "stable" through the ball. There is some closing but there is not a great deal of closing.

I'd say if you compared the clubface motion of the average golfer (and even more with a golf that has throwaway), you'd probably see a great deal of "wobble" in the clubface that you wouldn't see in a pro's motion.

Remember, you're nearing the bottom of a circle with a radius (Left Arm and Club) of some five feet. How much Clubface Closing can there actually be in the resulting Arc of the Impact Interval? Or, even more specifically, the 3/4 of an inch from Impact to Separation? Certainly not much. But, like the tide in your coffee cup, it is there.

Remember also that the #1 Snare in Golf is Steering, i.e., attempting to hold the Clubhead on the Target Line and the Clubface Square to that Line through Impact. And the tendency to Steer -- Under Roll -- is directly proportional to one's handicap. The higher the handicap, the greater the tendency to Steer. And vice versa!

Conversely, better players have largely overcome Steering (and its enabling henchman, Quitting) and Release the Club freely. In fact, as you have indicated, there may be an excessive Rotation -- Over Roll -- of the Left Wrist past its Vertical alignment for Impact. This puts the Clubshaft Out-of-Line with the Left Arm (thus destroying Rhythm) and results in a Throwaway just as damaging as the Horizontal Bending of the Wrist.

So, as a general rule, I would say that higher handicap players (particularly those with a Slicing problem) should attempt to Feel more Wrist Roll through Impact -- counter-clockwise rotation of the Hands -- and better players (particularly those with a Hooking problem) should Feel less (and maybe even none). Assuming correct Execution of the Hinge Action, the Clubface will perform identically for each player, despite their 'opposite' Feels.