I don't know anything about bando, but this first technique resembles a classic Japanese sword movement. (without the proper footwork)
The guy in blue added something that resembles the "blood flinging" movement also used by some Japanese sword schools.
Do I use Japanese budo with my khukuri? You bet, but I don't sell it and I don't call it something else. (and I would teach it right if I did)
The blade that goes over your arm isn't meant to catch the incoming sword. It's only a shield to protect you as you move inside his cut.
Timing is everything.
You seem displeased with what you have seen. That wasn't my intent, so here comes another rant:
I don't know anything about Bando either, that's why I thought it would be interesting to see. Is it derivative from some Kendo Kata somewhere else? Probably, or perhaps both arts reached the same conclusion from different paths. My favorite metaphor is that "there are many ways to the top of the mountain, but once there, the view is the same." I agree with you that it was funny to see a "Chiburi" for some added flair but much of classic art is now done for flair and even if it had a purpose long ago, it was lost over time. It was Bruce Lee's goal for his art always (except in his movies) to remove the useless and leave only the useful from the traditional art, though to be fair one has to be a real master of the traditional to know the intention behind every little subtle move.
Most everything humans do nowadays is derivative. Especially martial arts! Heck, if you go to an extreme, one could even simplify things so much as to say everything martial in East Asia started out in Shao Lin and spread out from there. As though as nobody hurt anyone in a fancy way before Bodhidharma!!!
Is Shorinji Kempo the same as Shao Lin Chuan Fa, and is that in turn the same as Korean Hapkido? Is traditional Ryukyu Karate really just "Chinese Hand," and would Japanese Karate even exist if not for the violent invasion of Okinawa leading eventually to the renaming of the art into "Open Hand" by brainwashed, nationalist Japanese swept up in WW II craze and hating anything Chinese? Would Aikido even exist without the Jujitsu training of Ueshiba or his later trip to China and possible training in the 3 internal Chinese arts, or should we just write if off as derivative and useless? Would Jeet Kune Do exist without the Wing Chun training of Bruce Lee or did he just steal all his moves from Eastern and Western Boxing? Should anyone who ever uses their elbows and knees in a fight pay royalties to Muay Thay, or going even further back to Muay Boran? In fact, should we say the Japanese concepts of Ki and Budo is just derivative of Chinese Chi and Wu thus making them useless because they were renamed and perhaps even taught "improperly"?
As for the move you are referring to, I agree that you see it both in Kendo/Iaido and in European sword arts too. After all, there are only so many ways to deflect a sword with the upward glance and step into it for the kill with a downwards swing and the variations are minor once you put a kiri-age and kesa-giri somewhere in it (even with the added hit to "kote" right before the finishing blow, which I personally think was useless and unnecessary if not even dangerous, but what do I know?). It is still a great move in every art because it is natural and instinctive even without what a Japanese sword-school would consider "proper" footwork. After all, there is so many "proper" ways as there are religions; are they all right, or are they all wrong; or should we maybe adapt and learn form as many as we can to better ourselves?
No, being derivative doesn't scare me, what scares me is that in these peaceful times what the "sensei's" and "sifu's" teach hasn't been battle-tested by them in the field and they are just repeating what was said to be effective by their own masters. This perhaps leaves more room nowadays for the skills of a Krav Maga- or a San Soo-trained, battle-scarred soldier or even an MMA fighter who has at least had a chance to see what moves would cost him a match and what would win him a match (I can't even keep a straight face saying that!). There are no copyrights on ideas that can save your life or win you a fight once the "meme" of the technique is out in the public domain, whatever name you put on that meme, and whatever money you make by teaching others survival skills. And if one sucks as a teacher, the students would know it and seek another master. Not to mention that the combat effectiveness of tradional arts has now been almost universally replaced by martial art's benefits for discipline (Shao Lin wushu, and every Japanese art), muscle tone and weight loss (Kendo, Muay Thai, Taekwondo, Kick Boxing, Savate), meditation and anger management (Ki-Aikido, Tai Chi, Ba Gua, Chi Gong, Hsing-I), concentration (Iaido), and the list goes on and on.
Alex