First, thanks for actually following up!
About the actual statement:
The U.S. State Department’s Office of the Legal Advisor concluded earlier this year that China’s mass imprisonment and forced labor of ethnic Uighurs in Xinjiang amounts to crimes against humanity—but there was insufficient evidence to prove genocide
I believe that “technically, we cannot prove it’s genocide, just crimes against humanity” is still a pretty clear and bold statement.
This. There is a reason why China has been censoring the internet so much, and why Russia and to a lesser degree Türkiye started doing it as well. And why two of the three most powerful people in the US apart from Trump control like 2/3 of all social media.