The problem is that writing about 25 different countries in a single issue doesn't mean they actually have experts on most of those places or people on the ground to do original reporting. Often, it devolves into British or American writers regurgitating inaccurate information from the Internet. But if it's the only thing you read about, say, forest exports from Myanmar, you have no reason to question it.
The easiest way to see this is to be a non-US/UK/EU person and read an article in the Economist about your own country. Then you realize that all the other articles are just as simplistic and uninformed.