Until now, MundoRare kept their faith in Rare when no other fan would today. They had proposed a no-fuss documentary to focus on the studio's 25-year history to reignite interest with the developer but were denied. Due to this disagreement, MundoRare shut itself down after being active for 9 years.
Rare's reason to turn away the filming was that it would not be "on message". It could be assumed the documentary would end on a sour note due to MundoRare not approving of Kinect Sports:
"Sadly, we see Kinect Sports not only as an uninspired response to Nintendo’s success, but also as a major turnabout that collides with the interests of our website. As a game targeted to casual players, its audience doesn’t include our readers or us. Naturally, if that’s the path Rare wants to follow from now on, we can’t go along with them."
However, MundoRare's view of Kinect Sports was the first outright negative opinion of the company so they've been toughing it out up until then. Still, the site considered closure with the drop in quality from titles such as the re-release of Conker's Bad Fur Day, Banjo Kazooie: Nuts and Bolts, and Perfect Dark Zero. We'll try see if Rare would like to comment on the matter.