Not until the points are LEGALLY part of the Condo Association, they aren't.
As the old saying goes, the devil is in the details.
The "OFFICIAL" press releases by Disney are not binding contracts. Witness the Eagle Pines press release from 2002. Prospective members who may have bought into
DVC with the intention of using points at Eagle Pines had no recourse when the project was canceled.
While Disney stated how many treehouses it intends to build, it never said that all of them would be accessible to members on Day One. Again there is a parallel with Kidani. We know they are building 320 units and that it will open on May 1st. However, not all of the rooms will be open then and even more will be held back from member inventory until the corresponding points are sold.
They are not legally part of the Saratoga Springs Condominium Association until they are added via amendment. Period.
While your relatives may be lawyers, I would question whether they have a background in Florida timeshare law. Or perhaps they are not well-versed in the circumstances at play here. Most lawyers I know (and I have one in the family, too) tend to avoid rendering legal opinions recklessly.
You could certainly argue that Disney is violating the SPIRIT of the program by giving priority bookings as a sales incentive. But I do not see any evidence of legal transgressions. Once the units are declared, members take precedent and all of the DVC rules apply. But until that time, Disney is not legally bound by any statements made in a press release.