Quoted from Matt_Rasmussen:
A machine would never get made if consensus was required. Put four engineers in a room you get five ideas, one that each individual likes, and one they all hate.
Quality control appears to be the main issue from the development of a grade "A" title from Stern aside from the lack of code development at launch. It appears Stern lacks sufficient data to fix flaws such as a slinging magnet drains and a faulty pop bumpers or smash toys that alter the intended flow of the game.
Data collection based on ball times,switches activated,and causes in relation to fast ball drains on a larger scale would help detect unintended results,and give them a chance to modify problems and allow for a more positive game release and possibly a more positive review from this community as a result.