Would people really complain? How self centered would that be. I really wish they had a new orleans style restaurant there. That is probably up there for most famous regional cuisine in america outside of america.
Disneyland has one. I can't picture people complaining, its never entered my head to bemoan parts of the Canadian pavilion for what it doesn't represent, which is almost everything given the historical slant of the american and the landscape slant of the canadian one. You'd have to pretty daft to think any pavillion at epcot was meant as an encompassing representation as opposed to a caricarture.