I mean, that was part of NASA's investigation conclusions. The design error wasn't using an industrially rated part, it was using it without proper screening, t

I mean, that was part of NASA's investigation conclusions. The design error wasn't using an industrially rated part, it was using it without proper screening, testing, and failure to follow manufacturer recommended safety margin. One of the purposes of using the "right rated" parts is that you get to off-load some of the testing and screening that you might otherwise wish to do to a component vendor (who is better equipped to absorb the price of testing, and because they have tighter integration with manufacturing, a better ability to achieve specifications). Like I totally get the idea of using lower cost components. But sometimes they are actually the solution. And sometimes finding the problem is incredibly expensive, if not in $$$, then at least in PR. Americans love to shit on gold plating, but they also love to shit on greedy corporations minimizing the bottom line.