I'd have to feel Kuroda or see more of him. I like what he does with the sword, I'm not impressed with the body work I've seen so far.
The Kono stuff -his attacking of grips-via the mechanical connection of hand / wrist / arm and dealing with force vectors view leverage is all jujutsu. I'm not impressed in any way from what I have seen.
Where anyone sees this as "high level" is beyond me. It's more like "Sensei, what do we do in technique #27b. when the Uke grabs our arm from underneath instead of on top...yawn