On perfect sheeting windows, with good flow rate, good frames, and no trees around. This would work.
In the real world it doesn't always work like this.
Tried it today, some of the best windows I did today like this, and they came up fine. Did another house, with dirty windows, and the dirt wasn't even half way off the window after the first scrub, trees around the house, and near a busy road.
You need to pay attention to each window to determine if this speed would work or not, if you are experienced, you know which houses/windows these are. If you are a newbie, do wfp'ers a favour and scrub twice, and take your time rinsing to prevent giving wfp a bad name.