You may be exactly right about the fist shaking, I do it all the time walking into the old WoL pavilion.
I just am a bigger fan of action and experimentation by the parks people than the stagnation and decay they so often seem to favor. I'd always prefer original ride concepts and ideas, but seeing Frozen helps my kids connect, so even the admittedly tenuous connection to Norway I can work with for the time being.
And although we can debate the placement of all the inclusions all over the World (especially stuff in Tomorrowland), I have always been a bigger fan of character inclusions in the Showcase. I think it makes it more kid-friendly touring with my family, and they get to be exposed to all the more adult toned stuff I want to see. But again, to each their own.
I would actually think that IaSW would make an excellent move to the American pavilion if there was room, perhaps with something on Disney's World's Fair involvement.
What they should do in WS is have historical/famous/culturally significant icons in each pavilion. Myriad ways they could include them. You see Louis the XIV come out in France in his crazy sun king get up. I'd wait in line to meet him. Ninjas crawling all over Japan at night. If they tag a kid, the kid gets a sticker saying a ninja got 'em. If a kid can sneak up on a ninja, they get a "I beat the EPCOT ninjas" pin or something. You could have the old and new. Meet Shakespeare and Doctor Who in the UK. You get the idea. And if you really want to update WS, you've got half a dozen expansion pads. I believe the last new country was 1988. They need to quit being such complete wussies and realize that education and entertainment can be one in the same. They used to know that.