I grew up worshipping KR in the early-to-mid 70's. He should have paid me -- he won every single race I ever saw him in, dirt or roadrace. I saw him dust everybody at Loudon in '77 with a broken hand (just keeping off my other boyhood hero, Gary Nixon) and watched him all but humiliate Mamola, Mike Baldwin and all the US racers at his last race at Laguna Seca after not racing for a year (where friend Dale finished fourth in BOTT on his home-converted belt-drive Ducati!!!).
So I am far from the first person you would expect to dislike this video, but let me inform, in a blunt KR-sorta way, that this video isn't about how to ride at all. It's a horrid disappointment if that's what you buy it for, as I did. There are only about four minutes on actual riding technique and the rest is almost completely forgettable. I disliked Keith Code's oh-too-simple approach (where you're ready for TOTW2 after five laps on-track), and I dislike this one for lack of real content. The best technique book I've ever seen was Steve Baker's little paperback book analyzing hyperbolic, parabolic and circular lines, but haven't seen a copy in years (gave mine away, darn it). The only important point is the concept of the "danger zone," from which you are supposed to derive KR's entire riding style. Good friggin' luck.
I saw KR do things on TZ-750s, OW-31s and 500GP bikes that were definately first-rate -- just look up the race description for his last Sears Point appearance to get an idea of his incredibly front-row abilities. I would love to hear him talk more about how to ride, what to do with different power bands ("so, KR, how would you ride a bike in the dirt with all torque and no horsepower?"). ways to compensate for decreasing amounts of grip, what about footpeg weighting, when do you transfer weight to where etc etc etc.
I also have no doubt that, could we put all the best riders of all time on equal bikes, and give them some time to get used to them, that we'd see something that looked like the "BMW race" at Daytona -- a knock-down, drag out real race. My money would be on Hailwood to win, but only by a fraction, and I'd put KR in the next group of about 10 equally gifted and able racers.
And BTW, Roberts stopped racing because HE was mentally worn out after the last year racing with Spencer, and realized he'd had enough (just read his bio). Mental games weren't his strong point and aren't to this day, he's much more direct than almost any Formula1 car racer. But he did adapt to all sorts of conditions, as you expect from any multiple World Champion, so can't be discounted by any of us mere mortals.