It was civilian rather than military so the focus was more on exploration and knowledge rather than weapons and defense.
That being said, this wasn't a NASA study, and they do not agree with the conclusion. The study was done by a totally different group who used a NASA sponsored HANDY (Human And Nature DYnamics) model, which offers up different earth models and drew their own conclusions. NASA has nothing to do with this.
Besides the conclusion is nothing you wouldn't learn from any Aristotle class. Big happy middle class = stable country. It doesn't take a genius to know that a Plutocracy isn't a stable form of government, but to act like the US is only a few decades away from that is dumb. I would agree that if the US were to collapse, or civilization as we know it were to end that's probably more likely than a war type situatuon.... but not anytime soon.