I don't understand. As much I saw, this was a Chinese study and I also guess that most participants if not all, are Chinese.
Good point. Loads of people die early over here in Bangladesh, and we eat some of the spiciest foods in the world.
That's not the point. The point would be that be that people who eat more spicy food live a little bit longer. It does not mean you don't die from other causes - obviously level of life is a large predictor for life expectancy.