Jackdaw,
// You are damned if you do and damned if you don't. //
No. You are damned if you get it wrong.
Last Wednesday the authorities were aware of a Trump rally planned for the same time the all the State Senators and Representatives were meeting a short distance away. They had intell that disorder had been planned on social media.
The right response to that situation is to make sure the Lawmakers were completely safe. The threat was ignored and the Lawmakers had to be rescued to save their lives.
If the Capitol was properly guarded and the Trump rally passed off peacefully, no one would have damned the authorities. Quite the opposite, they would have been congratulated for a job well done.
What actually happened last Wednesday was the Capitol Police were quickly over-run by sheer numbers and the building was stormed. Reinforcements from Washington PD came and a massacre averted. That was at 2pm. The National Guard were stood down. They eventually turned up 3 hours later when the riot had been quelled and all the rioters were evicted from the building.