Yes, I understand it. Passengers will not though and that is the key issue here. Passengers just want to get on their way. Not get stuck at security for 1hr and then sit on the aircraft for another 30 mins waiting for other pax caught up in security to then wait another half hour in the queue.
This brings on to another issue at MAN and that is the security. T3 especially seems to reject 1 in 3 bags which is mostly a random selection. This adds another 40 mins onto the security time. I appreciate that security is a major issue but having 6-7 lanes out of 10 open at a time slows the process even further. Earlier this year the T3 security queue was tailing back past the AA check in desks meaning that passengers in queues to check in were mixing with those for the security. This also caused great difficulty for passengers trying to access the new Flybe check in area.
As a passenger at MAN all you seem to do is queue. Even after security the corridor is so narrow that pax queue there too.