yes, Japan is more important than China for this case. But I see it as a potentially worse sign because mostly audience from US and China have similar opinions on movies from WDAS, Disney's live-action department and Marvel Studios. So if WOM for a Disney title is not good in here, it could mean that US audience also have some problems with it(of course, those from Lucasfilm & Pixar are exceptions). It's too early to judge or make conclusion, but reducing expectations is reasonable at this point.