I saw this with Rather-gate.
It didn't hit until Wednesday or Thursday when the story broke Sunday night. They are biding their time for a defense so they can present the new information and readily follow up with a defense to counter. They have less than 12 hours to find it before it blows up on them.
You're right. Oh, to be a fly on the wall at ABC.... I'm surprised there aren't webcams in the Drive By Media secret rooms.....