That's not related to my comment. My comment was pointing out that you can't verify something that wasn't published. You have no idea what fraction of their techniques they're not publishing, and how much they contribute to their model performance, because you cannot replicate the models, because they don't publish their training data.
> and the reason the Chinese are not sharing data are no more nefarious than why the American companies are not sharing
This is moving the goalposts. Your claim was that "The Chinese have actually been very open about training", which is false, as discussed. Nobody ever claimed that the American labs were open.