Alison, I haven't seen this video. Have you?
The reason I ask is that I had the impression that it might come from a group whose ideas are contrary to yours. I have seen it promoted on another D forum by someone who is a vegan ( Her other half has had success following a McDougall diet ie high starch low fat,vegan) If you google it with the word vegan you will find a lot of vegan sites promoting it.
I'd be interested to watch it just to see now but TBH I don't want to put my details on their database, .