As you can tell I've really cranked up the posting frequency on this site. I'd love to increase the readership, and even make some money with the site. So what do I work on, SEO or content? Of course content is important, even with the best SEO crappy content means no one will stick around to actually read it.
Notice I don't have any sharing buttons on my site. First I think they clutter up stuff, and second on 99% of sites they just sit there blank. So they question is how to get readers to share the content for you?
So when I read that SEO is not the most important thing I really listen. Basically the article is a bunch of tips on writing content that users will share.