The former agent whitewashes Comey’s own admitted reasons for sending the agents over to question Flynn. Comey essentially admitted they did so because he figured he could get away with it. He admitted that conducting the questioning without giving notice to the WH or telling Flynn what they were up to was totally outside standard protocol and regulation.
I’ve read speculation and tend to agree with it that the Russian sanctions were a setup to try and manufacture some Russian collusion. As soon as Obama announced sanctions, they knew the Russian ambassador would be on the phone to Flynn. At the time of the sanctions, I wondered why they didn’t let the incoming administration deal with the Russians. They didn’t give 2 cents about them during the election. Seemed real odd to me at the time..