I'm thinking with the current incentives, unless the resale offer is way above average, it doesn't matter all that much to Disney. They'll likely take whatever the lowest priced contract is, that would be the best fit, for the direct sale they're trying to close.
We might be over analyzing this. They probably have sales agents at the end of each day saying I need X amount of points (and maybe with a certain use-year) - then sending it over the fence to a ROFR team who just fills the request each day... and they're not going to lose the deal on the direct sale over a 5$ ppp difference... they'll just grab what's available. I'm sure it's more complicated than that, and they're likely doing forward projections... but still, I'm thinking the focus is to get the points to close the deal and if they've already bought up the cheaper ones they'll start taking the more expensive ones.