"You Teach People This?" Part 1- The Armbar

I know, I know, I've mentioned this before amongst friends, well-wishers and anyone that has ever performed an arm bar before, but come on, it deserves all the attention it can get.

Seeing as how I have watched this video over a dozen times, I have found that several questions keep popping into my head. Here is the short list:

1. Isn't he giving you his back?
2. Isn't he giving you an arm triangle?
3. Isn't he giving you a gogoplata?
4. When you say "3rd" in your progression then say, "cross his face, grab his arm, push the face away" should that have been 3rd, 4th and 5th?
5. Wait, your feet can be open or crossed? Wow, arm bars are easy!
6. Was it a good idea to have an instructor that doesn't know to squeeze your knees or have the thumb pointed up?
7. Was it good to have a grappling dummy that doesn't at least fake tap?

More questions not directly related to technique:
- Should I cut the sleeves off of my gi?
- Should I wear a black belt from another discipline while showing techniques of a discipline that I have little to no understanding of?

To be fair, the red box that appears in this video does point out that they are not a BJJ school and that they believe there is not just one way to do things.

Also, at the very end he says, "that's how we do arm bar". He doesn't back himself into a corner by saying, "that's how everyone needs to do an arm bar."

That being said, he has proven step by step that if you are fighting/competing against someone that throws a punch then falls asleep due to unfortunate timing associated with their narcolepsy, you can get an arm bar this way.