I think there's a pretty clear explanation, when you look how this link and the information within it is being used in the anti-vaxx/covid denial groups.
1. People post CDC link out of context, and claim how all the numbers of infections from previous year are inaccurate. How testing is useless, covid doesn't exist etc.
2. Facebook fact-checks this, and marks the content as "False information"
3. The link gets marked as false information in the system, and regardless of the context that popup shows up, as they can not check every single comment written around this link and even if they could it would delay marking it as false information substantially.
1. People post CDC link out of context, and claim how all the numbers of infections from previous year are inaccurate. How testing is useless, covid doesn't exist etc.
2. Facebook fact-checks this, and marks the content as "False information"
3. The link gets marked as false information in the system, and regardless of the context that popup shows up, as they can not check every single comment written around this link and even if they could it would delay marking it as false information substantially.