Neither Berezhnaya / Sikharulidze nor Sale / Pelletier were American. If there were protests from the crowd over the outcome of the Pairs event, it must have been from the Canadians---after all, the Olympics is a major international event and there were people from many different countries in the audience.
But at the 2010 Olympics in Vancouver, when D/W took the ice for the FD, the Canadians in the crowd chanted "Canada! Canada! Canada!" I doubt the chant came from anyone other than Canadians or rabid V/M fans.