That is not at all what I got out of the article. The main thrust is that policies that are apparently dumb to non-teachers are not actually dumb. They are well-justified responses to the ways students will attempt to defeat the purpose of the system.
Yes, people will attempt to defeat systems to their own benefit. That is why these policies discussed in the article exist -- to harden the system to such attempts.
"Wrong" in your comment is underspecified. It depends what you mean by the word.
