Hi Bluedragon
I'd love to be able to answer this properly.... however I know very little about integrating a blog into an SBI site (I've never even had a blog before

)
I'd interpret Ken's title as meaning that 99% of bloggers don't know everything there is to know about effective blogging, marketing, and all the tecchie stuff you mentioned.
Above all, SBI is a program for beginners. And lets face it, most people aren't experts at this stuff. (Apologies if I'm undermining the skills of the average blogger...) Besides, plenty of SBIers never dreamed of making their own blog or website.
Perhaps I'm oversimplifying the issue. But I couldn't compare your ability to get rich from a blog against all of SBI's teachings. Somewhere there is a divide - and I guess that's why Ken says "Why MOST
(Not ALL) Bloggers Should Switch To SBI".
Know what I mean?