Well to me that was a great video.
Hunting one time in Alaska in the TOK mountain area, there was a guy and a lady who lived out there, they had 6 wolf pets in a pen. I got to see first hand how they socialize with them. The wife and I were on a Tok sheep hunt and stayed in their cabin. The guy and only the guy could walk in the pen all over and all wolves would bow to him. The wife would walk in and do almost the same thing and get down low and they would come over to her and react with her and then she could move around.
The wife and I were allowed to go to the outside of the cage not inside, and when we did, the guy and his wife were not in the cage. He said it might cause them to defend themselves if we were close to the cage.
Was really cool to see it all, he also showed us pictures of 5 bull moose in a fight with each other on his front lawn out there.
Joe