The reason Matsuoka Sensei was not given any recognition in PBT is because PBT was produced after Matsuoka Sensei left Tenshin. And you are correct, there is a wealth of footage of Seagal Sensei as well as Matsuoka Sensei from seminars around the world. However, very little of this footage was ever produced into the public market - and the little that was, which was mostly, if not all, Matsuoka Sensei footage, is no longer available. And, again, you are right, the few people that do have copies of the tapes will not reproduce it... very sad considering Matsuoka Sensei is an excellent Aikidoka and an excellent instructor and the footage of his techniques is worth watching over and over again.