I have had the privilege of practicing with my team at the CA gym before a competition. They graciously opened their doors for other teams, not from the area, to practice before a major competition. I would hardly call 6 full floors plus room for a tumble track and more a small facility. There were tons of teams that day, all practicing at the same time and there was never a safety concern. Is it possible that the child was unfortunately in the wrong place at the wrong time?