I see no reason to think Apple will want to stay silent about an attacker trying to hack a user's account just because they might stay silent about warrants with gag orders.
When we're talking CIA, you can't get your way out of it with a better lawyer of by paying a fine. It's a decade of jail waiting for you if you don't bend over and give them exactly what they want. You have no constitutional rights when it comes to national security. they are legally allowed to kill US citizens without having to get court approval if they think they are a threat to the nation.
You seem to be talking about the first, whereas the support page is about the second.