You may be right. I trust Herridge, but HRC’s camp must detest her, as she's broken many juicy stories about the private server/ If a story would hurt HRC, they wouldn't leak it to Herridge. If Herridge says they told her that, I believe her...but I don't believe the underlying story is true.
I read that the stpory was reported by Jennifer Griffin, who travels with Camp Crooked. I agree with your take of Herridge. She’s honest.