And only the Patriot balls were underinflated by NFL standards.
The whole case is based on the fact that one game day employee spent about one minute in the bathroom before the game. The psi of the footballs drops due to colder weather. There is no proof whatsoever that any of the footballs were manually deflated. In fact, the data is inconsistent with the footballs being manually deflated.
The case against Brady is not about the footballs. It is about his phone. There is nothing in the players collective bargaining agreement the requires a player to surrender his phone. Tom Brady does not want his private and personal information to be leaked. He does not trust Wells. And rightly so.