Firstly, their work dates from the 70s and the 80s, so it's not clear that the conclusion was quite that obvious back then. Secondly, even if it's obvious, it still has to be proven and explained rigorously. Sometimes, in fact, it's the obvious things that are the most difficult to prove.
I'm totally with you on this. There's nothing wrong with it, and, even more than that, it has to be this way. It's akin to complaining about the laws of nature....a waste of breath
I can't believe they didn't give this to Obama for saving the free world. (Or was that the non-free world?) Whatever. I'm sure he deserved it just like the peace prize he won.