It is if the only data is lack of world records, and mixed opinions from experts (per the article)

Nitpick of the nitpick: in international sports, the preposition used is "of", as in "Pan Zhanle of China", as an elision of "of the Chinese team".

Now, I could make up reasons for this, like not every athlete is strictly "from" the place they compete for, but a just-so story isn't needed here, prepositions are what they are, often arbitrary but always specific.

Citation:

https://apnews.com/article/paris-olympics-china-swimming-pan...