The PF is the face of the pin it's what all players are looking at almost all the time. In today's market most pins are going into a collectors home to be displayed, showed off, and played. No collector wants to spend $5-9K for a pin that comes with flaws right out of the box or shows poor craftsmanship after a few hundred plays.
I understand that there are challenges to getting top notch playfields. However, with the significant pricing increases of these new pins during the last 4 years I don't think it's irrational for a buyer to expect a better more solid product. Do whatever it takes either find a playfield maker with extremely high quality control or take it in house and refine the process for a quality product. Most importantly make things right when a product gets sent out to a buyer/fan that should not have been sent out.