Quoted from Richthofen:
This is unreasonable. Pinball machines all require adjustment; there's not going to ever be a pinball manufacturing process with aircraft-grade tolerances. It's a mechanical device, it might require adjustments, the factory is not going to put 500 plays on your game to make sure there's no possibility of a stuck ball on your specific one. They do the best they can to find design flaws before the assembly. You also can't tell them on one hand "we want exact original design!" then on the other hand want "no ball hangups".
Are you saying it's "unreasonable" to make sure you put all the screws in the machine and that they are tight ?
Break down the set of issues into their smallest problems/defects, and resolve what's causing each issue through improvements in: people, process, policy, tools & governance.
I'll tell you what would be "unreasonable", and that's lumping all problems in as 1 issue and then choosing to ignore it. But, fortunately that's not what the PPS person is saying they're going to do