Think about how multifaceted US policy is on any given day of the year. The economist boils down similar issues to a blurb on a page with a heading that says "middle east." So now you can turn that page and be confident that for this week you know what's going on in the middle east.
The truth is the economist fills a void. Before reading an issue you know nothing about current events in India. After reading you know something. Something is vastly more power than confessing ignorance in any situation. And if anyone questions you, well, the economist said so.