Exactly this. I found myself thinking WTF as I read the article. Maybe I'm showing my age, but the project I just switched from (and still have to consult on from time to time) was started in the late 90's and probably won't be retired for at least 10 more years. I have found myself not just looking through version control history to understand the change history of a file to find a bug, but tracking it over multiple version control systems as the project matured.