I'm not sure how symbolic it is, it's not like the US is going to arrest a Harvard student who is also the daughter of the Chinese dictator for political reasons.
But the idea that Harvard is still the "best place" for his daughter _is_ symbolic.
Kim Jong-un studied in Switzerland, Pol Pot in France.
Chiang Kai Shek, and both founders of the Communist Party of China were educated in Japan
Perhaps they studied politics very well to understand the positive and negative traits of democracy?
e.g. Symbols of driving tanks over students
What symbolism do you see?
"The report states that Xi Mingzhi was unsatisfied with her life in China after living for several years as a student in the United States."
I dunno what's symbolic about that exactly...