this IS bullshit - those 5 things you can do without paying so-called SEO Consultants
And, FWIW, you can do ANYTHING without paying ANY consultants. File your tax return, sue somebody, build a bridge. You don't need a professional-- all you need is the time to self-educate.
With SEO, the questions are: "How easy is it to learn the SEO stuff I need to know?" and "How important is SEO to my business?"