That's quite a conspiracy theory. It indicates that Pelosi and others had foreknowledge.
It is as I said, speculation. I know that Pelosi took responsibility for the riot, privately to her daughter. The video was leaked.

Pelosi admits blame for ‘stupidity’ in Jan. 6 security failures in newly released video: ‘I take full responsibility’
“We have totally failed. We have to take some responsibility for not holding the security accountable for what could have happened,” the California Democrat raged.

What she knew of orders to Byrd is unknown, no investigation of the shooting was conducted.