I do think K/S and S/S are over-rated, even though their programs were choreographed with great innovation esp. those entrance and dismount of every elements; instead of having the polish as pang/tong, they rushed into every element, nothing was quite yet finished off; the aloof facial expression and weak relation between each other aren't quite counted into the score. I personally put up a big question mark on their PCS scores.
It is evident that they don't wanna see one country dominating a sport, so probably Chinese-sweep is simply not acceptable for ISU, otherwise I would say the judges have a weird sense of beauty in terms of marking S/S over Pang/Tong on PCS.