I think more than anything he is questioning the training methods of Aikido. Choreographed patterns of movements that are practiced extensively are the standard training method in Aikido. Freestyle and or LIVE training are not generally encouraged. Often frowned upon by some. There are some Aikido dojos that due encourage LIVE training or freestyle, but not nearly the standard among many dojos. The one handed Aikidoka in the video is training using LIVE/Freestyle type training. That method of practice is not standard in Aikido. Arts such as Brazilian Jujutsu are almost 90 percent LIVE training. The Kata system is not used much in BJJ and definitely looked at as an unproven method. That's what Bas Rutten was trying to point out. He indicated that some Aikido pins can work at a close distance, wrist locks that is.