Cops used to shoot down the last hallway back when kill arresting wasn't a thing too. What's the point of running down the same path over and over again with a nightstick in hand like sheep to the slaughter? Jail interior is built entirely in favour of the defender which is the core of all problems here, whichever side gets to camp the last room will get enormous advantage, criminals even more so as they respawn couple of meters away. While kill arrest is a bad idea, going back to the way things used to be is equally bad. Just that less people might complain as there are less cops in general.