To evaluate CDC statements, you must see both the science and the politics, and be able to distinguish the relative role of each.
Surely you’ve heard the accusation that the CDC is mostly working to control information, while neglecting the control of disease.
The accusation is correct.
I have not seen Friedan say anything inaccurate about Ebola. Everything he has said is consistent with the scientific literature.
As far as I can tell, he is being criticized for NOT saying all the bilge that people think they know about Ebola as a result of reading The Hot Zone, or Outbreak, or one of the other highly sensationalized but woefully inaccurate dramatizations of a disease outbreak. Plus, he is a horrible public speaker, which does not help.