I find it interesting that as soon as the MLS appears to be taking flight and becoming a legit league Red Bull pulls out. Why now, of all times, are they suddenly deciding that MLS isn's the right league for them?
Their German team just got into the second tier of German football. This season, if investment continues to push it forward, it has a chance of making the promised land, the Bundesliga. From there, it could push on to make the Champions League. Bearing in mind that Red Bull's sports division are Austria-based, they are shifting their priorities now the German team is eclipsing the American one in importance.