Failing up. Studios didn't even miss out on that much stuff during its overhaul.
And edit to add: also throw Brazil on that list - the site prep for that made it further than the theater at Magic Kingdom ever made it.
The saddest thing about Epcot is that it's too propped up by festivals to tank like Animal Kingdom or Studios. I say that because I was guilty of contributing to it - when you're a local and want to get out in the evenings, it's a good place to walk and for every festival iteration there's the 3-4 things that you like to snack on or drink.
But when there's no festival it's like ehh why would I bother. It's like saying that you saved a local mall because the JC Penney turned into a movie theater and now it's busy - you didn't actually save retail, you just found a different reason to get people to show up to salvage the foot traffic stats and economics.