>>58097550
It would have been more interesting if the reason she was a bad trainer was because she spent more time on Roller Derby than practicing with her Pokémon. This would have created conflict with her grandfather, who wants her to continue the tradition of being Mega Evolution experts, and Korrina's dream of being a famous athlete.

Also, seeing humans and Pokémon compete in a version of Motor Ball or Roller Ball would have been so cool.