What this showcases more than anything to me is Walt's absolute inability to compromise. There were so many incredible ideas in epcot that could of changed the world, if he didn't demand absolute 100% control and require all inhabitants to sacrifice all of their rights he could of really been onto something revolutionary. However his absolute inflexibility to his own ideals made this impossible from the start which is why his legacy will forever just be cartoons. Also if he was this completely overwhelmed and delirious just from planning a city, I can only imagine how he would feel running it. I can't imagine he'd actually want that kind of responsibility.