I think it's a mistake to view Disney as one monolithic company moving in lock-step toward one common goal of producing maximum income for the parent company. In reality, the non-DVC resorts, food and beverage, theme parks, DVC, and many other components are separate business units with their own business models and financial objectives. That's not to say the component parts don't work together -- they obviously do. They obviously cooperate, and they compromise with each other, but they also have their own interests.
A perfect example of that is the
Disney Dining Plan. Originally,
DDP was a
hotel promotion, not a plan to increase restaurant traffic. And originally -- because we're coming anyway -- we were excluded from DDP. We later got it, and DDP and other marketing initiatives filled the Disney resorts and the restaurants. But the F&B folks said, "Hey! We're getting killed over here! Everybody is making money on this but us. Give us a piece of the pie." So this year, Disney made radical changes in DDP which will make staying onsite slightly less attractive, but which will greatly increase F&B revenue.
I think renting is a similar issue. DVC has a vested interest in keeping current owners happy and increasing sales -- so a reasonable level of private rental serves those purposes. I think DVC's main concern with renting is the calls to MS, the complaints from DVC owners who don't like renting, and the rare situation of a renter showing up whose ressie has been cancelled. Renting is NOT competition to DVC itself.
OTOH, renting is most definitely competition to Disney Resorts. The Resort management has a responsibility to rent as many rooms as they can and one of their inventories is unused DVC points inventory. Resort management will push for anything that increases their ability to generate revenue. For the same reason, the managements of Disney Resort hotels have recently showed an increasing tendency to "walk" DVC points guests with confirmed reservations in order to accommodate cash customers. They're not working for the greater good of the overall organization, and they're working
against DVC; they're looking after their own P&L.