To answer your question I have tried to put things into perspective.  It would be very easy for me to bag the living shit out of Stern for everything and anything but I see the positive in things, not the negative the majority of the time.

When u run your own business like I have for 15 years, and u are on commission/performance pay only, u wake up every day and look for reasons to make things happen and stay positive, not reasons to not make things not happen and see the bad in everything.  So when i see a few hundred people get pinball machines new, I look at the 97 percent of machines that are fine, not look only at the 3 percent that are not fine.

To judge Stern on the 3 percent that are not fine would be narrow minded to me, and not take in the big picture. If I had a machine that wasnt perfect I would get on with the job of having it fixed, I certainly wouldnt dwell for very long on the issues. Life is far too short to complain about everything and everyone.  Bagging people is easy, giving people a big pat on the back for the great things they do is alot harder.

Stern should be very proud of the games they produce, and at the same time continue to do more for quality control ofcourse, but Stern already know this.

Some people bag Stern so much it makes me think that some people honestly think Stern does this on purpose. We all know its not the case.
I just try n focus on the 97 percent good that Stern does. Easier for me to be thankful for the 97 percent good then to focus on the 3 percent mistakes.
Look for the gold, not the dirt. lol