Well those countries are dangerous because they are involved with war/pirates...
Brazil on the other hand, there are people killing each other for as little as a phone our a bike.
This list is clearly based on countries who aren’t involved in a military conflict, because who the hell would go live in a country like that?
Most of those places you list are not included in any studies behind the list which was posted. Its a list from people on where one lives to do business, not a list of every country in the World, so war torn countries and the like are just considered off the scale. Everybody knows Syria is to be avoided and whether Iraq or Afghanistan is worse also doesn't matter as both countries are really bad.