Taking the flight was not a wise decision on her part by any stretch of the imagination. Any adjective will do: foolish, stupid, negligent, selfish, etc.
However, that does not mean the CDC can lie if her version is correct.
If her version is correct, I hope she documented the names of each person she spoke with from the CDC.
If the CDC is lying or even bending the truth I hope her lawyer goes after them with everything in his arsenal.
The agency has acknowledged approving Vinson’s return flight.