Does it seem at all logical to you that a cheer squad with 40 members would never be together in the parks? This seems to be a classic case of "I haven't experienced it, therefore it does not happen." American cheer squads roam around
en masse, no different than any other groups. I imagine that if you had been on Main Street on this day, you would have complained that your view of the castle was blocked by inconsiderate teens.
And you have hit on the problem....
beforehand! When the actual ratio differs from the expected ratio, what does Disney do? Turn away the revenue and ship the group back to the airport, or shrug its shoulders, let them in and say: "Have a magical day!"
To the contrary. It is quite difficult. Or perhaps "difficult" is not the right word. "Inefficient" is. If the resort wants to block off an entire wing for a group that will arrive on a Tuesday, it has to empty those rooms on a staggering basis to make sure that no one else is in the wing. This results in rooms being unoccupied for many days in a row. Not bad for a business hotel where the average stay is 2 nights. But terrible for a vacation resort with 5-10 day stays. It's not as if the resort asks the Smith family to move out of their 80's room in the middle of their stay so that they can be place in the 60's wing. In order to clear out the 80's wing, they have to not let anyone in it. Yes, it can be done. But no resort wants to have empty rooms for days on end waiting for the arrival of a group that is probably paying $70 per night for the room.
Above all else, this seems to be where we are.