Hoop Dee Doo is adorable! I love that dinner show... Spirit Of Aloha gets mixed reviews... I live down in South Florida and we have The Mai Kai here which does a Polynesian show that is probably better than the Spirit Of Aloha but without Disney Characters... I do wish they would re-imagine the entire Luau Cove and build something really spectacular...While not on the scale that you mentioned, Hoop Dee Doo and Spirit of Aloha both fit the bill as “Dinner Show” experiences at WDW.
I think WDW could support several Dinner show experiences... And a real deal Broadway theater would be amazing too.