Do you know the CDC has been "silent", or have you just not seen anything about this before? Two weeks is pretty rapid to push through a decision like this, even in an emergency.
Then the CDC wants to chip in, but by then they were no longer ahead of the narrative.
The CDC did Not give people sufficient forewarning of what’s to come, and foreign agencies, scientists, business leaders, and news media took control because they were in fact providing more signal. America is normally a beacon of confidence during crisis.