I would repeat myself - it is not very mature to post that many snippets of your life online. None of us would look too wise if everything we do or say gets online.
I have the feeling that SW wanted to be an actress as a kid. And having gotten to these videos, she suddenly started realizing this dream - she is online now! Nothing in her suggested being successful in this role, her speech was almost stuttering and her messages were rather shallow, and I don't even know if she understood what was truly driving her, but here is how it looks like to me. I don't know whether relationship was so bad that it was her outlet, or if it got bad because of her constantly videotaping, but I think she praised her husband for the sake of these movies. And Thrive was not the ultimate goal. The ultimate goal was to be online. Her message as a divorced woman with three kids and without her beautiful house would have been very different, and SW did not want to be seen in that role. (Although I believe that in this position, surviving as single mothers, women can give really powerful messages - but SW's perception of the world was obviously different).
So what she says, laughing at him, is irrelevant. She is not emasculating him. She is the author, the screenwriter, and the actress of a bad movie. The problem is not her putting him down - the problem is, she views herself as sort of a celebrity. Her whole world is imaginary.
Still, nothing that could have not been helped, I think.
He, on the other hand, is scary.