This happens all the time. Someone buys an image and uses it on their site. Someone else lifts the image but gives credit to the original site thinking that is where the image originated. At least they tried to give credit to who they thought was the original source. I don't think this was intentional however it is still wrong. The final user may not know that what they did was use an image that should be purchased. If they did know, I'm sure they have done it more than once. Although this doesn't make it right, it is a common problem. Images purchased by one party are lifted by another and then another. I'm sure you know that.

If you feel strongly about the second use you can leave a comment on that article or contact them (which will not be easy since it is associated with the New York Times). You can do that yourself since you tracked it down, no one else needs to. You can also contact the DT photographer by leaving a comment on their image in the Tools tab. Another thought, since the photog is not exclusive, they may be selling it on other sites so DT may or may not be the place where the original purchase was made. I'm afraid that if you look further you will find many of these.