True, that was the “technically” part. If it’s rush hour and everyone is standing on all the steps on the right and everyone is walking as fast as they can on the left then the overall rate of people is less than if everyone was standing more densely. At quieter times then the people who need to rush can get there faster because they don’t need to stop at the beginning while they wait to get on.
Seems like he finally listened to everyone’s suggestions that he get on the bin