I don't think we'll ever see a turnaround like this. What Yoshida and his team managed to do is one of these gaming histories I would like to see told on a book/a bunch of articles.
I would love to see a survey from SE asking people about why they bought ARR. I'd bet a significant portion of new customers (ie those who hadn't previously subbed to XIV) were due to that CG video and friends linking it. I was one of those who saw the CG vid and read the story behind it and pre-ordered it.
I still think the launch week issues of ARR were darkly hilarious. "We're very sorry everyone, we really didn't know this many new people would want to play our game..."