I would never attempt a manually-throttle-blipped clutchless downshift on the entrance to a corner on a track. I use the clutch on downshifts - always - because the shift is much more reliable and predictable and it avoids any possibility of lurching forward, even momentarily, while in the midst of braking for a corner, and it avoids any possibility of upsetting the suspension. This would be doubly true when riding an unfamiliar and very powerful bike ...
For those reasons, I am pretty sure that test rider was downshifting using the clutch there. I sure would. (20+ years roadracing experience, my name is not Valentino Rossi but I do okay for myself on my vintage race bike)
Agree to disagree, I would and do, all the time, at any speed. Maybe not so much on vintage bikes but the new slipper clutches are impossible to upset unless they break. (D*mn things work so well you can't even push start a 10R all the way back to '04 - it just won't lock up.) The dog ring transmission in the H2/R is specifically made for that type of use. I probably wouldn't push my luck full lean, but that guy in the video was still in the straight cutting speed - and if you're still downshifting in a turn, lets be honest, you already screwed up.
I assume people know this stuff but if you don't - don't take my word for it;
"A slipper clutch (also known as a slider clutch or back-torque limiter) is a specialized clutch developed for performance oriented motorcycles to mitigate the effects of engine braking when riders decelerate as they enter corners."
Don't get me wrong, I'm not picking on you - everyone has their own comfort level, skill level, weapon of choice and style. I'm just saying that guy was doing something I do every time I ride. I know that sound like I do my own voice. Kawasaki was extremely picky about who they let ride the R. I assure you that guy wasn't doing novice overrev/lever downshift moves like that at Sepang on a 320hp race bike with a dog ring transmission and a slipper clutch. There's just no reason to. It'd be adding a whole extra step to the process, upset to the drive train and adding a bunch of unnecessary friction generated heat to the clutch on a system specifically designed for clutchless up/downshifts.