It's not that it was the issue. It probably wasn't, although we'll never know.
It paints a picture. A bigger picture of carelessness, corner cutting, rushing, and absolute indifference to the lives that depend on this company making its sub work.
And in a larger sense, it paints a picture of the way the wealthy run every aspect of the world now: carelessness, corner cutting, rushing, and absolute indifference to human lives.