I believe that Zhang Dan and Zhang Hao would not get olympic gold in Turino even if they successfully had finished the quad. That means percision and technique are not the decisive factors in figure skating.
Now, for Liu Yan and other Chinese figure skaters, the main problem is not skill or percision, is understanding the music, expressing the music. They need more dance training, ballet training, and music training. I don't think figure skating in China will be as good as gymnastics and diving, even in several years later.
That's only my opion, hehe!