There's only one problem with your thought process: even if the "thugs" were sent by the big bad hotel industry, they have no influence over the way that AirBnB responds to the incident. If they would have handled it in a responsible, savvy way this would be a non-story, or maybe even a big PR win. The "devious" plan only works if AirBnB bungles the ball, which they have done. They have no one to blame for that but themselves.
At the end of the day, it doesn't really matter who caused what to happen to this woman, does it? AirBnB have obviously given credence to the basic tenants of her story (she is a person, she used AirBnB, she was ransacked), that is enough. The only thing that matters after that is the way they handled the situation.