The bigger security concern is sleuths figuring out all the camera locations and, by deduction, the blind spots. Johnson is setting up the next Congress to be much more vulnerable to violent attack.
If there's anyone with a lick of sense in the Congressional security team, they've added or moved cameras specifically for this reason. If I was on that team, January 7th I'd be pushing to add more cameras/defenses, given how close it was as is.