Definitely, if GGG will lose against Murata then I think there's no need to get excited because the match is not that really interesting to see anymore because we know that Canelo is still in his prime and that will surely mean that he will be declared as the winner in the people's eye even before the fight happened then certainly the hype will end.
True, that's why the trilogy is still based on their fights, if anyone one of them loses, specially GGG, then the trilogy will not be interesting to see for some casual fans. Maybe those who wanted to see are the hard core fans of the two.
So GGG will really have to showcase his talent first against Murata, as if sending a message to Canelo that he is still ready to fight him.