I think it's youthful exuberance too. The blog post is not bad but my guess is that she heard or read it from other people. It's not based on experience.

I remember when I was in college, we had a shortage of professors. They started hiring fresh grads and they taught courses such as project management, entreprenuer, etc. The new teachers were teaching from the book. Students never listened and we passed the course just by reading the book.