Not if they are both in the backfield. It’d only be a true “wildcat” if the QB (Book in that scenario) splits out as a WR. Even then it’s a stretch to call it “wildcat.” The whole point of the “wildcat” is to get the ball to the RB with a blocking numbers advantage. And part it is about not signaling the play to the D. You have regular personnel on the field and the QB splits out and a direct snap goes to the RB. Sending two QBs onto the field would be a clear signal to the D. I could see the possible value of having plays for Wimbush that would be wildcat-like, but it wouldn’t be an actual “wildcat.”