I saw this the other day, and its the usual way of them taking a shred of evidence that federal law enforcement agencies were quite aware of the gathering and that it was basically guaranteed to end up in a violent encounter and did seemingly nothing to prevent it, and then twisted that into that the FBI coerced the right wing nut jobs into committing their treasonous act. But of course they ignore that the Turmp administration actively interfered with any attempt to deal with things and so there were likely orders or intentional not responding to requests to act from the FBI by Turmp's administration to prevent them from doing anything to prevent what happened.
So, we should be investigating how much the FBI was compromised by either active interference or orders to not act to prevent or alert other agencies that should have been alerted and could have acted prior, and also how much they were compromised by being hamstrung by right wingers screaming about persecution by the FBI (much like how the DoJ and IRS backed off investigating right wing political money despite evidence that there was rampant corruption and crimes being committed in the process, as well as similar screams from Turmp about the FBI investigations into the 2016 election and specifically his and other Republicans' involvement with Russian operatives).