I've seen signs for private functions at Tangaroa Terrace.
I too would think that the former Snack Isle would be busy if it were to be reopened.
In fairness, I can understand TT being closed to some extent. Although it always seemed busy at breakfast in the good 'ol days, that wasn't true at dinner once Epcot and the GF opened.
But all the restaurants seem so much busier these days, don't they?