The person who gave the advice apparently has a pretty dim reputation both at the school and at sea so… it seems like an effort to screw new grads over so he can get jobs easier without competition or a way to make him feel better about washing out of the tugboat side of the fence and needing to get back aboard ships as an AB to upgrade, covering any sense of shame by suggesting “everyone should do it this way.”
Just my opinion, I don’t know the guy and can’t see the post, but I sincerely hope the graduating cadets steer well clear of that kind of advice.