I am not sure if I understand you correctly and I am by no means an expert on the history of the sport, yet, if I got what you mean, I did watch a documentary on Yuzuru which claimed Seimei was in fact "revolutionary" in that it introduced Asian "traditional" music (I mean, not Jpop or Kpop etc) into competitive figure skating setting. The doc claimed this music genre had not been used this way before because Asian skaters were worried about the judges reactions, were afraid it might badly affect the way they would be scored and preferred going for safer, Western or Westernized, musical choices. Further on, the doc claimed it was one of the reasons why Yuzuru's Seimei was met there with such a wide applause (apart from the fact it was an iconic program on its own anyway) as it was very strongly stressing his ethnic Asian identity, and he was the ruling OGM then, so it was widely appreciated.One question: Was Hanyu's SEIMEI revolutionary ?
Again, I am not sure how true it is but I do not recall any eye-catching inconsistencies in this doc otherwise so I just took it at face value and tend to believe this is how it was. If true, it might indeed bring some insight into the musical choices regarding warhorses against music more characteristic of individual skater's background or ethnicity.
If true, it also speaks tonnes on the racial bias in the sport (or its perception).