This girl was an anchor baby. Parents were Chinese nationals living in the US. May have been scientists, maybe educators, not sure, but something like that. Looked promising as a junior skater.
She decided to go to China 4 years ago. China was looking around for Chinese citizens to lure to China in preparation for 2022. Occam tells me she saw a better chance of making the Olympics with the Chinese team than with the Americans. Training from 2018 was in China, and I figure, subsidized. This is on China, then, Their training sucks, apparently.
So, this isn't a situation where this athlete took US training all the way to close to the Olympic start. She made the decision a lot earlier. Her big mistake was not learning the language. Strange, because Chinese should be her mother tongue, so I'm guessing the mother just spoke English to her, or didn't speak Mandarin. Not sure how that works with Chinese. If she's 19 now, she was 15 when she made the move. Not sure how she arranged her education. Would be HS years, and surely the possibility to do school in China while training. Common in Europe, for example, where talented kids are moved to good coaches and competition and school at their training locations. Makes it stranger she doesn't speak mandarin, though.
Not sure about now, but in the 90's, early 2000's foreign soccer players who weren't good enough for their own national teams and had US citizenship would come over and play for the US national team. Germans, for example, who's dads were GIs with German mothers. Couldn't get a cup a coffee with the National team in Germany, but walked on to the US team. Nothing new for the sport's scene.
Unless this girl is publicly dissing the US, I don't understand the gloating that she crashed. Made a big decision at 15, not unusual the world of sports, and it didn't pan out.