This is exactly why the left wants to release the transcript. They want to give Lisa Page a heads up.
I don’t think they’re being unfair to him. He’s under subpoena (depending on who you believe). Walking out gets him no where. They’d just subpoena him back.
There are so many relevant but inconsistent policies, regulations, orders specific to given investigations/hearings, traditions, laws it is hard to keep up. They have specialists to keep track of given hearings they can consult. Inefficient, for sure.