Interesting.
in US professional sports, the argument at one point was that athletes should be bound to the team that “raised them up” or that their contracts prevented them from leaving without their first team’s permission. That thinking has been pretty much rejected here legally, and also “morally“. Nothing now prevents an athlete from going where they choose.
A pro athlete is bound by a contract, but the pro athlete is being paid. I don’t consider subsidized coaching as “payment”, but that’s just me. So if that’s the argument, I can see the basis even if I don’t agree with it. If someone from a club was actually giving these girls cold hard cash, I can see restricting their movements. Otherwise, let the skaters skate where they want and with whom they want. Better for the clubs, the coaches, and most of all, the skaters