Could you share the dimples with some photos.

Every Playfield new has dimples on them because of the wood. I have not seen a playfield without dimples.
The clear fills in all the natural wood dimples and the clear stays undamaged unless the balls aren't right.

I have never seen a Stern machine or a Sega playfield (games dating back to 1997 to 1999 etc) with any damage done to the clear even after some games have been sited and played a lot. After cleaning and polishing plus waxing the playfields , they are as good as the day they were built, shined up and going strong.

You just never hear of anyone with a Stern playfield that has damage down to the colour or ink or wood.
I think the Stern clearcoat being "too thin" from factory is just a bit of a myth.

If you pay to have a new playfield cleared for $1,000, then perhaps people think that is thick, but it doesn't mean in my opinion there is any technical issue with Sterns factory clearcoats. If there was, we would be seeing damage and photos regularly. We never see it. If all playfields have tiny dimples in the wood, I am not sure how that relates to clearcoat. None of my Sterns have any issues after playing them.

I had my ACDC Pro sited at a special event one day with apx 300 games at 3 balls played on it and the clearcoat is still shiny and immaculate and undamaged.
I can't see the KISS Pinny being any different.