Let me tell one thing: I absolutely hate sloppy engineering. And by sloppy I also mean rushing. There is a class of engineers and engineering managers who think that they are rockstars because they can churn out code quickly. I am absolutely disgusted and sick of this attitude.

And why do I bring it up here? Because I suspect this kind of attitude was partly blamed for this fatal and tragic accident. Of course this is pure speculation. But my 12 years experience in the software industry makes me believe that's what happened.

Also a relevant talk by Uncle Bob: https://youtu.be/ecIWPzGEbFc