That is fine, even if confusing. The point is the book allegedely has distilled the "good enough" formula -- whether the formula is new or mined from previous

That is fine, even if confusing. The point is the book allegedely has distilled the "good enough" formula -- whether the formula is new or mined from previous films is unimportant. That so many movies are echoes of The Matrix and similar is kind of the point.