I think Yuna makes the case for how athletic ability translated into artistic skating. She actually has been criticized for being reserved and distance seeming in her performances. But her lines are so controlled, and her jumping is so majestic, that it just looks more beautiful than other skaters'. Carolina Kostner has the same/arguably better qualities. People talk about the artistic aspect of skating like an amorphous thing. Like it is just all driven by personality. But smoothness in all a skaters' elements is developed through conditioning. On one hand you have Michelle Kwan, who really emoted through her performances in a unique way. On the other you have skating technique which is just more refined.