Whether it was intentionally leaked, accidentally leaked or had nothing to do with the lab - restricting people's right to talk about it is a violation of the law. The Courts have ruled multiple times already that it is illegal for government officials to pressure companies to restrict constitutionally protected freedoms.
https://www.reuters.com/article/us-otc-nra-idUSKCN1NC2TI
The WH indicating which posts they want removed is a violation of the law.