You might recall Ms. McFarland leaving the administration just a couple of months after the inauguration...
Turned out the FBI was trying to build a false case against her and send her to prison too.
Maybe she wasn't really in a position to say anything at the time, or maybe her attention was on other things.
Or maybe there's some other answer to your question... I have no idea myself, so all possibilities remain open...
We need Barr / Durham to get on with it. So help me, if they drag this out beyond Nov. 3 without any, not one indictment of these scum deep staters like Brennan, Clapper, Strozk, Page, et al, we will see it all disappear possibly.