My point was, it would be quite hard to have someone prosecuted if whatever he was doing was not illegal in that state.
And, as Artistic Skaters pointed out, the statutes allowing corporal punishment apply to teachers, parents, and legal guardians, not to coaches, so it would have been possible to pursue criminal action as well as civil action and procedural action(s) when a coach physically abuses a skater.
The reasons for not doing so intersect the reasons sexual abuse victims stay quiet, including not wanting to become a whistleblowing pariah and loving the sport, but there are far fewer parents who can be convinced that sexual abuse is an acceptable coaching technique, while many parents still dismiss physical discipline in sports as acceptable -- ie, the coach must know what they are doing -- a positive thing. Getting your parents to back a criminal complaint, especially as a minor, is generally critical: the father of one Nasser survivor, whose mother and father were friends and neighbors of the Nassers, threatened to disown her if she didn't apologize to Nasser to his face for falsely accusing him, because the father was too fragile to accept the truth (and it was all about him). Without that, a minor is flying solo.
If your parents think it's fine, or don't want there to be trouble, or think it's all for naught, or don't have resources (financial or psychological) or, alternately, if the athlete thinks they are the only one and/or no one will believe them, or there is peer pressure to STFU, or they feel guilty about their family's investment in them, or if they fear their parents will yank them out of a sport if they tell their parents, athletes (and dancers and musicians and scientists, etc.), will suck it up unless their perception of the abuse > wanting the sport.
That is why it's the responsibility of the alleged adults in the room, to do something, and why there are mandatory reports, who should be sanctioned when they put other interests over that responsibility.