But that's NOT how it works. Because of the lock-off premium, 100% of owners do not book 100% of the rooms/days, unless every 2-br-lockoff is booked as a 2 bedroom. The moment you break up a lockoff, there are going to be more chart-points than sold-points.
I'd have to go through the contract to get the exact number, but I believe (IIRC) Disney sells 94% of the points for any resort, keeping 6% for themselves, as "fully sold."
For simplicity sake -- Assume a resort only has 1000 points, when the 2 BR lock-offs treated as a 2 bedroom. Disney sells 940 points.. keeps 60 points.
So does that mean only 6% of the room/days go unused by owners?! NO... it's actually much more than that..
Because of the lock-off premium, as soon as you break up a 2BR-lockoff unit, it's no longer a 1000 point resort. It may become an 1100 point resort. Disney owns 60 points. Owners own 940 points. But there are essentially 100 phantom points unowned by anybody.
As a result... Instead of 94% of the days/rooms in use by owners, now only 85% of the days/rooms are booked by owners. Leaving 15% vacant -- And yes, DVC/Disney can do maintenance/rehab/refurb of vacant unbooked room!
So by adjusting the lock-off premium, DVC can increase/decrease vacancy needs.
By your logic, the lock-off premium is illegal and doesn't exist. It would mean that Disney can't touch the vacant rooms created by the lock-off.. they can't rent the rooms to cash guests, they can't perform maintenance. They just have to let those rooms sit empty....
So then, why does the lock-off premium exist? And if it is illegal, then why hasn't Disney faced a massive class action lawsuit for this illegal practice?!?
https://www.whatswrongwithdvc.com/post/the-lockoff-effect-explained-for-the-grand-floridian