The guy didn't read any print, not just the fine print. From Google AdWords help docs it says "By default, location targeting includes both physical locations and locations of interest"

When it says "location of interest" someone in Turkey can be interested products or services in the US.

The article even says itself that he didn't click on the advanced features until he asked his friend, after the clicks from Turkey. This is totally the user not reading the docs... and he used to work there... in that group for 2 years?

Also, Google and Google Adwords is heavily biased to be about relevancy, not mechanical-like billboard. Shouldn't be a surprise.