You said it yourself, though; the GMA format has always been a mix of hard and soft content. If they'd been doing 5 hours of death and destruction and Trump til now, they'd be drawing the internet equivalent of hash marks. Don't tell me that if CBS was doing something like this, that they wouldn't be tapping into the broader resources of the network, like 60 Minutes, Stephen Colbert, the ladies of The Talk, or even Entertainment Tonight. A few select hours of a 40 hour program is a bad sample size, and if you want the 24 hour news cycle, there're a dozen other channels for that. Even if it's silly and generally a waste of the viewers' time, this is an ambition project, nonetheless. When Peter Jennings did his 25 hour marathon at the new millennium, there were people that were worried that the world was going to end, we'd all go bankrupt and planes would fall out of the sky, yet that was only a part of the full broadcast. I'll bet you that, come 7am, normal GMA will be on the air with 60-90 minutes of the latest on the apocalypse, and we all won't have missed much.