Somewhat unlucky for Liu Xin, I think, who had two linecalls against her for which she appeared visibly upset (the second one, the umpire actually overruled against her) and then there were at least twice luck of the net cord for WYH. In such a tightly contested match, incidents like these could have swung the match outcome the other way. Too bad, no linecall instant review system available in the CBSL.
Another thing is, the 11-point scoring system can also drain the players gradually, esp when it's closely fought and goes the full distance. In this instance, the two ladies were fighting tooth and nail playing at a frenetic pace, with the score showing little separating the two which was really the case.
Liu Xin's movement and court coverage as well as retrieving ability is exceptional, comparable to WSX's but unlike her, she is a bit more offensive, less reactive. WYH appeared reluctant to engage LX in long rallies and was usually the first to force the issue by going on the attack. If I hadn't heard wrongly, TXH was telling LX not to play long rallies too often but to take more initiative - upon reflection, that make sense to me as otherwise LX would end up mostly being dictated to by WYH and be forced onto the defensive more often than not,imho.