It hasn't been made publicly available outside of the Spanish streaming service he mentioned in his Tweet. He did have a private upload of it on Vimeo several months ago and would only give the link to those that PM'd him on social media. That's how a lot of people saw it. Not sure if it would still work now.
If the Estate are the people he's talking about then that's pretty damn sad. I personally thought it was people in the industry that just don't like Michael and/or were influenced by LN, but the Estate probably would make more sense.