To put it even more clearly:
Exit programs do not exist for the benefit of owners. They exist for the benefit of the developer. That they happen to be helpful to owners is a side effect. If Wyndham needs more inventory for the sales machine, and what you own is particularly useful to them, they will be happy to take back your ownership and may even give you three years' use. If what you own is not useful, they will decline.
This isn't quite the whole story--the developer would prefer not to have to deal with Viking Ship exit scams, etc. because those are expensive to deal with. So, in that sense, this is for the benefit of owners who would otherwise be more likely to fall prey to such scams.