They are not shocked. They are just upset that they no longer control the flow of information and will get their collective feet held to the fire when they lie.
Higher ups are probably angry. While the media believes their audience is dumb, making this assertion as though it were fact was just too obvious. This wild lie would’ve required everyone to be complete morons and assumed nobody would read the facts.
It’s one of those, “while they might be stupid, they’re not THAT stupid”. Still arrogant. Still pathetic liars, but some recognize this was over the top and actually hurts them when they have some other lie they want people to believe. Their credibility is already causing them pain, this just made it worse. THAT is what they’re really mad about.