Rich Goodale,
The incredible number of these pitch marks on each green would seem to preclude your theory.
I can't imagine hundreds of unrepaired pitch marks on each green at Pine Valley.
I think other factors are responsible for them. possibly chemical applications, heat, moisture, etc., etc..
Most members, guests and caddies know the drill at Pine Valley. This seems to be an anomoly, but, I know one thing, they can't be caused when the greens are FIRM and fast.
A cute Pine Valley story.
I'm told that a caddy became involved in a debate over club selection with his golfer on the 14th tee. The golfer wanted to hit less club, the caddy wanted him to hit more club, so as to clear the intervening water.
The golfer made the ultimate choice and chose the lessor club.
As the caddy finished cleaning the ball, he held it up to his face and prior to handing it to his player, addressed it as follows.
"Take a deep breath before he hits you."