The queuing system is in effect the queue itself down the ramps, although it can be a bit of a free for all on the bridge itself.
I agree though it works quite well, its only an issue on midweek matches sometimes, especially when the club put away fans first (Millwall/Palace) when they run...
I guess as it is a Sunday there will be additional rolling stock available unlike for evening games. The train service provided on boxing day was exceptional