Not to be crass, but if you watch that Episode, and still don't get what made epcot special, you probably never will. And that is OK. Epcot didn't hit everyone the same way. But for those it connected with, nothing has come close to matching it. Some of my most profound memories of Disney, are seabase alpha, seeing the dinosaurs in energy, Horizons. There was a sense of wonder and inspiration grounded in something more real. I didn't always need a character to entertain me. That's what the magic kingdom was for, and I loved that too.
Ummm... did we watch the same episode? They didn't get into any of those long, omnimover, edutainment rides which EPCOT purists say make Epcot EPCOT. No details of how they were made or why. Just "we wanted to build technological showcase pavilions like at World Fairs." No discussion of the role of corporate sponsors or financing (which WDW lost or stopped caring about). No discussion of guest reaction. No hydrolator. No Figment v.1. Nothing about the Horizons ride. Nothing about how cutting edge technology is soon old hat and they need to keep up with the edge (which WDW didn't). Nothing about the original intention to keep IP out.
It was all about what they were going to do without Walt's guidance and how they scrapped his planned community plan and how a board decided to build a brand new type of park. And they built it. The end.
What would Walt do? Scrap his plans and just build another theme park? Ummm, yeah, that's the ticket! That's what Walt would do!
Maybe I need to watch that episode again.