The Technical Guide seems to be more written for someone who's moving up from a lower-spec camera and may not have the totality of experience to fully utilize the camera, but I didn't get the sense that it would be too advanced for most consumers.
The advice that the Technical Guide purports is simply all the basic technotes over the years that Nikon finally put together in one pamphlet. Kudos to someone in Marketing getting together with Tech Support to make a readable, relatively simple and easily understood document that captures basic concepts with operative procedures. I don't think anything is new in this document - those of us who have learned the hard lessons over the years know these things - Use a Tripod, What is Active VR vs. Normal, what effects does in-camera NR have, etc. There are clearly pages that highlight the new feature set, such as the ability for exposure metering receiving benefits from face-detection, etc., but for the most part, there are no suprises to folks who have learned on and properly used DSLRs for years.
Now - given all that, is it enough to convince someone to use a tripod? Probably not, but that's on the consumer. Will you get complaints later of "softness" and other similar gripes when the D7000 was released? Probably. The challenge has always been to get the new owner to Read The Fine Manual (RTFM) in full. Smart camera owners moving up to a newer body will fully familiarize themselves with the controls. They will also experiment and share notes. Digital Darrell and other tech authors already have their "How To" book drafts ready to go, so there will be a wave of auxiliary readings to accompany the initial D800/E release.