And now the 'not virgin gymnast' drama is getting interesting after one of the famous sport news website interviewed the coaches: https://www.jawapos.com/sports/30/11/2019/dituding-keluarkan-atlet-karena-tak-perawan-pelatih-membantah-keras/ (in Indonesian)
To summarize the article, the coach (who signed the dismissal letter) said that the athlete is unable to keep her performance and ideal weight. She lost badly on national trials against provincial level athlete, and she was considered to SEA Games just because one of our best gymnast injured. Also, she often got caught run away from the dorm to meet her boyfriend and lied that she was doing school work. The gymnastic federation decided to follow the coach recommendation and discharged the athlete. It looks like her mother is not happy with this and started an uproar.
Just like my prediction, it is from the gymnasts' side who created the drama