Oh come on. The pavilions have always been about the culture and people, not about whatever government happens to be in power at the time. At the risk of venturing into the political, Mexico and China have some skeletons in their closets over the years, as well as some governmental issues.. that hasn't stopped them from being just fine as pavilions at Epcot.
Whatever goes in for a Brazil pavilion (if it goes in) won't be about the Government of Brazil, nor will it be sponsored by the Govt of Brazil. The ones that remain sponsored from the outside are from business groups, AFAIK, with possibly only Morocco still having any governmental involvement, and even that one I'm not sure of.
The beauty of World Showcase is you have been able to see the best of the people, culture, and land without having to deal with any of the political nonsense that may be going on in the real version far, far away.