She wasn't throwing it. She was already out of contention. She was breaking protocol on the biggest stage in sport to please her fans.
If you don't see why that's a big deal, that's fair enough. But the fact that Bonaly's performance is legendary suggests you're in the minority there.
And again, doing it one-legged is not something people do in shows. Or that most people can do at all. Are you just arguing for the sake of it at this point?