 They knew he had reduced hours in the White House between 10 and 4. They have seen him on TV as many times as the rest of us have, talking to dead people, confusing the names of world leaders in high-stakes scenarios. Okay, they knew this. This isn't new. But the play acting requires them to act like it's new. So they get back a little bit of credibility by making it look like they called a fair fight on Biden, got him out of the race, and then they can go into full propaganda mode for whoever they replace him with. That's how this is going to work.