I have this theory: Disney is basically Microsoft circa 2007.
Remember when the first iPhone was released, and signaled a huge shift toward mobile devices and away from the PC market that Microsoft has dominated since forever? Remember how Microsoft CEO Steve Ballmer reacted?
He laughed at it. He laughed and said that Microsoft was very happy with their mobile strategy, thank you very much. And then his company proceeded to merrily sit on their hands and do nothing while Apple, and then Google, proceeded to eat their lunch. Microsoft, with all its money and resources, was incapable of understanding that their industry was undergoing a major paradigm shift. And by the time they finally realized it, it was too late. The only company more clueless is Blackberry-they still think people want smartphones with tiny screens and physical keyboards.
Like Microsoft, Disney's corporate culture makes it unable to understand the threat that Universal's parks-and-resorts business poses to them. They're about to have their lunch eaten. And they won't even realize it until after it happens. If they ever do at all.