Maj. Gen. William J. Walker testified that he did not receive permission to deploy troops for hours on Jan. 6, as violence by pro-Trump supporters escalated.
www.nytimes.com
This sounds like trump insiders preparing for the insurrection. Flynn's brother had a hand in the delay.
It looks like they were just complying with the Democrats' demands...
From your own link to the NY Slime....
The restrictions were put in place because of the widely criticized crackdown by the Guard on mostly peaceful protesters in Washington in June, said Robert G. Salesses, a senior Defense Department official testifying at the hearing.
He said that Mr. McCarthy and other military officials, including Christopher C. Miller, the acting defense secretary, delayed deciding whether to deploy forces on Jan. 6 because they wanted to know more about what the troops would be doing. They had assumed deployment authority over the D.C. National Guard to avoid a repeat of last year, Mr. Salesses said.