Or you've completely missed the point of the article/story. The point is lines of code are almost meaningless. In this story the person saved 2k lines of code by rewriting a rendering engine, and use somehow think that's less than deleting a 45 k line jest snapshot.
Sorry, if it somehow sounded that my example is somehow more than what was mentioned in the article. Absolutely not. I think that my example also very well demonstrates that lines of code (even that isn't really "code") isn't not a good way of measuring productivity etc. My example could be considered as an example of how a code review didn't "do it's job" for what might have been a newbies mistake. But I also think that code reviewers cannot be blamed for every bad piece of code that gets through (context matters).