Your electron microscope and harshly lit photos remind me of this thread:
https://pinside.com/pinball/forum/topic/classic-playfield-reproductions-bad-quality#post-4591919

Those ridges really are unnoticeable unless you look at a specific angle under a specific light glare. They don't affect ball travel. You can find "flaws" with every clear coat using macro mode with your camera, even on factory automobile finishes using robotic armatures.

The peaks and valleys are too shallow of a range to affect ball travel. A way to verify it is to have the playfield flat and roll the ball at a speed of 1 inch/second, and see if the ball gets trapped in the valleys like a bowling ball rolling in the gutter lane. But it sounds like he's getting it re-cleared anyways.

It's a very common thing, even some of Kruzman's photos have them, and I can assure the ball does not get locked into those grooves. It's not even a a bad thing. You may be able to barely feel them with your fingernail, but that's not the correct way to "feel" how the ball would react. There is more contact surface between the ball and the playfield than a fingernail. Rather, try using the blunt tip of your finger and run it across the playfield, I bet you won't be able to feel any of those grooves.

https://pinside.com/pinball/forum/topic/kruzman-monthly-playfield-thread/page/9#post-5799659

First photo, bottom left glare right above the shooter lane. I'm assuming kruzman clearcoated that? I think this rippling effect shows up after a playfield is months fully cured . Not sure what it's due to... wood contracting and expanding underneath during the seasons?

Untitled2 (resized).jpg

Nice mirror finish, very difficult to achieve especially if it's a used playfield. Yes, the CPR still looks good and will play very well.