[yodeli]

After low point, if the club is on plane, the club head moves back to the inside again (in a perfect swing). A hitters divot should be pointing right using the angle of approach and assuming he/she did not manipulate the face closed to cause the divot to point straight or left. The closer to low point and longer the club the less the divot points right.

I think it is easier to understand things when they are simplified:

Imagine both a Hitter and an Swinger performing a stroke with a club without a clubhead (ie a Dowel).

Because either Hitting or Swinging you trace the straight plane line, you end up with your shaft digging into the ground and leaving a straight line.

Picture a circular saw cutting into a piece of wood: the tooth of the saw move in a circle, yes.
But it won't cut a curve in the wood! It will cut it straight!

The closer to low point and longer the club the less the divot points right.

It shouldn't because low point is always in front of your right shoulder.
Using a wedge, the ball is simply placed up plane but you still go to low point. The result: a bigger and deeped divot than with a 3 iron but with the same low point.