I think most of them are "drinking around d the world."Yes, less visitors at Epcot. But by your own account, 42 attractions versus 17.
So Epcot has 40% the number of attractions as MK, but still has 60% the number of visitors.
They're all doing something while they're in the park. And my guess it's not Circle of Life and Figment.
You may have skipped Epcot, but lots of others didn't. And many more won't when the Frozen ride opens.