Like making sure a book has a contents, index and the pages in the right order, a title that is going to look attractive, and a description that will make readers want to know more.
That part will never change no matter what search engines do, because people always make sites that aren't put together properly.
Good SEO's also look at converting the visitors that originate from search engines, nobody is going to change that either.
I think this article means to say 'The end of the recent black hat techniques in SEO' - as we all know, those breaking the rules always find new ways.