[gohbgl]

Yes, tutorials should be expected to teach people about security if it is within their scope. But the problem with the tutorials from the article is that the authors seem to be genuinely unaware of the security issues. That may also be the reason why they are trying to do the impossible, that is teaching web authentication to beginners in a 10 minute blog post format. And then they often get positive feedback because people like simple but wrong answers to difficult problems.