I completely agree. Dick Button used to say." That is not a stretch at all." All of us can see that Yuna lacks in flexibility compared to Mao. Look at those video below. It is absolutely clear.She has good speed and ice coverage but it's definitely not true about her lines/extensions. A great spiral has both the technical and aesthetic aspects. Unfortunately, Kim's spirals only have the technical parts down.
I love Yuna's expression and the way she uses her eyes. Huge 3lz and 3t. Excellent artistic quality. But I do not understand why her spiral garners high GOE at all.
Also, her sit spin position was really high, compared to Mao. Her spin often travels too. I do not get this Yuna Hype at all.