I did not go to your link, but I have my own idea why Norway seems to be so awesome to so many people. Let me state first that I am an American of Norwegian descent, 71 years old. I love America and have never set foot on Norwegian soil. Norway's recent reputation as the best place to live on the planet is at first glance, surprising considering the Latitude, but easier to understand when you consider its Defense Budget.
Ask any Finn you happen to meet of their opinion of Norway. Norway has no Defense Budget, unlike America which has bankrupted itself spending Trillions of dollars every year in able to remain free and to ensure that "Neutral" countries like Norway can become the best place to live.
Congratulations Norway, and you're welcome.