Information like that in this video is great for helping us understand the history of our martial art. The Bujinkan has a history unlike most all modern martial arts. Very few martial arts from the Waring States Period survided into the modern era because the Meiji Era caused most of them to change to a sport version or a "gentlemen" version. The schools of the Bujinkan survived this change and maintained the original essence of their martial arts.
Shane Sensei is a licensed Shidoshi in the Bujinkan and member of the Shidoshi-Kai. He has trained in the Bujinkan since 1998 and regularly travels to Japan for training.