Yes, those are ALL people.
Rush hour..? Might as well be.
Disneyland: No jets, no hiking, no oxygen bottles.
Sometime like the last quarter mile or less to the summit requires ropes, and that's where the real bottle neck is. Literally, it's a kings of the mountain game at that point.
And don't forget the growing piles of frozen doo-doo, not to mention all the trash.
Occasionally, "feel good" stories are run about a group carrying x amount of material more off the mountain than what they brought for the trip.
There are a number of routes to the summit but obviously that is the easiest one of them. I read its called the yak track. If you didnt want that lineup the other routes would be your teams alone. Of course a much harder climb would mean you would have to be a premier climber and not a tourist style one. Not that Ive met any climbers but these days Id be more impressed if a climber had summited K2. There are no tourists on K2 as it is a much harder climb and only a smidge below Everest in elevation.