On the invasion of privacy stuff, it was very narrow discovery. If there was nothing to hide, I question the lawyers advice to not turn it over. Knowing this was going to be a court of public opinion, his clients celebrity status, and the NFL's low levels of standards to punish.
If the lawyer weighed all that and put "not setting a precedent for other players" or "making a moral stand" then that's very suspect advice. Brady is his client, not other players. That's why I can't believe that advice was given.
The request is very narrow, it's not court enforced, and would produce a small amount of documents. They could have tailored what they gave. To not give anything is bad advice, as we see now.