Prior to Jan. 6, Trump supporters had held dozens of mass rallies without burning cities or murdering people. This was a major embarrassment for the Deep State. Media coverage of the Jan. 6 event has been largely successful in minimizing that embarrassment. This was a major Deep State coup and the planning and execution of this "insurrection" reveal a disturbing relationship between the government and radical groups. The FBI did not only fail to adequately prevent the disturbance, they appear to have actively facilitated it. The FBI and radical leftists are branches of the Deep State.
Why are the thousands of videotapes of the events of January 6th not being released?
Part of the reason for the feds not releasing the government videos is that there are literally tens of thousands of researchers who plan on viewing the tapes. They may reveal FBI informants taking part in the violence. The left has an extensive network of training facilities for agents provocateurs.