Am I incorrect in believing that this occurred in 2015?
You're correct, it's an old story.
This did happen in 2015. The story disappeared because she got an A in the class in spite of the zeros. It turned out she got zeros because she didn’t answer the questions given and went off the topic. Sort of like answering the area of a circle equals the Battle of Hastings.
There is no date on the article and it just showed up in my mail box today.