The title of this article is misleading to me. In the title you imply that UX designers don’t need a portfolio. However, in the article you are stressing the importance of showcasing certain more important information—restructuring the portfolio. When one says “portfolio” it doesn’t mean it has to be full of wireframes, prototypes, etc. A good portfolio can and should include the information you are discussing in the article. So, I guess it would have made more sense to stress that it’s not about not creating a UX portfolio and more about putting the right information in your portfolio.