The one that went down? No. The civilian on that was from a different company, and that was under different circumstances.
SNC has had other issues involving lack of SA or risk taking out here, not involving crashes.
ETA: It's not just SNC. There is another company that they work hand in hand with that have the same issues. The people I work with from SNC are good guys.
I would chalk it up to guys that do what they can to try and accomplish the mission to the best of their ability. Unfortunately, things tend to get overlooked, ignored, and/or forgotten, and bad things happen.