My personal take on what was the craziest part of this hearing:

The Secret Service knew untold masses of people were armed and dangerous and just let them march to the Capitol. The only person they bothered to stop from going to the Capitol was Trump.

So when Trump gets the news that Pence's life is in danger, his security detail has to sneak him into a loading dock, and he's begging the Pentagon to clear the capitol building, the Secret Service ensured that outcome by doing absolutely nothing.