Okay. No fraudbusting, right? This may not be easy....
The first clip. The grip, terrible. The swords are not much better. The "ninjato" is pure Hollywood fantasy (not surprising for someone from "Tenshin Koga Ryu Ninjutsu".....). His concept of blocking on the side is frankly wrong. Blocking is done with the edge, precisely for the reason he says you shouldn't. This is how it is taught in Katori Shinto Ryu, Hyoho Niten Ichi Ryu, Kukishinden Ryu, and every other system I have come across. So while he says this is very basic, it is less than that. It is innaccurate and wrong.
Second clip. He doesn't quite know what European swords were like, does he? Then again, he doesn't seem to understand Japanese ones, either, so that's fair! His idea of having the first impact near the tsuba (guard) is almost laughably wrong, really this guy has no idea.... His action is very bad, he has no idea of how the sword works to cut, you just don't need the type of action he is describing to the degree he's saying! Don't listen to him!
Clip three. Practice makes permanent... more's the pity for him, then! (Sorry, I'm writing this as I'm watching them.... "Yukie"? Is that what he called the girl he has helping him out? Seriously, this guy has no idea about anything he has said so far....). No you don't use the entire blade to cut with! Dammit, why is he talking! Why do people listen to guys like this?
Oh, dear lord, that technique is horrible!!!! The distance is miles too close for any form of realism, the block could result in his sword being broken, the cuts are ineffective, who learns from someone like this!?!?!
Seriously Bob, this is a great example of what not to do/think/say/believe/listen to for swordsmanship, and as bait, yep, got me here again (at 3.30am with a 12 hour shift tomorrow... oh, this'll be fun....). But don't listen to a thing this guy says, he has no training in anything relating to Japanese arts, swordsmanship or otherwise that I can see here.