...Who's Banri?
Wakaba is rotating 3As in competition now and even landed one with a 3-turn this season. She's never done that before in her career. I think that would indicate that she's in prime physical condition.
Everyone has a different weight at which they operate efficiently - skaters like Midori Ito or Viktoria Volchkova jumped worse after they lost weight. Athletic ability sometimes correlates with having a physique that conforms to a societal ideal of beauty, but not always. If the two aims clash then jumping takes priority because this is a sport, not a catwalk.