Read the sentence again. It is a justification of their choice as being a practical one, not a statement about the quality of the book. They're saying that while "Getting Real" is the 4th best seller on Lulu, that's kinda like the old joke about "What's better than winning a gold medal at the Special Olympics?" To even have a hope of reaching "real" best seller status requires the resources of a traditional publisher, so that's what they did. Whether they actually achieve that status is another question, one which they make no claims about. That's why the next sentence reads "We want to sell hundreds of thousands or millions of copies." not "We will sell hundreds of thousands or millions of copies."
