Those larger-than-standard bathrooms, with wheelchair-accessible showers, and (you can be certain) bariatric toilets, are going to be expensive to install. Multiple single-stall restrooms in common areas will cost far more than standard, multi-stall restrooms (even if they build those communal restrooms with bigger stalls).
Everything they are promising increases the necessary square footage to accommodate it, and increases the construction costs accordingly.
In one of Anna O'Brien's Disney visits, she stayed at a hotel that had deathfat-accessible bathrooms. Disney panders to fatties like mad, but in that room, she was dismayed to find that there was only a curtain separating the wide bathroom entrance from the rest of the room. It was really weird, and looked cheap as hell, but that was the solution Disney came up with to offset the cost of building a much more spacious bathroom without making the rest of the room smaller. And if Disney, with its deep pockets, is saying, "forget building a wall with an extra-wide pocket or barn door; we're just going to put up a curtain," how the hell do the dreamers behind the Appalachian expect to manage the costs of building spacious, fully-accessible "luxury" bathrooms for their guests?
Also, there are some common issues in disabled-accessible restrooms that I see all the time, mainly putting the toilet too close to the wall/barrier so it's harder to maneuver while seated on the toilet. That affects normal-sized disabled people as well as fats—but it's a matter of inches, not feet. Deathfats need so much clearance, with the toilet so far from the wall, it creates problems for normal-sized disabled people. A person who needs to use a handrail to sit or stand will have difficulty getting enough leverage if the handrail is placed too far away in the interest of accommodating deathfats.
Deathfats are frequently disabled by their fatness, but their specific concerns for space and accessibility don't always overlap with those of normal-sized disabled people (including the elderly, who are not fat, but mobility-impaired). That they're dressing up deathfat restrooms a disability issue is dishonest—deathfat-accessible "disabled" restrooms would actually make things worse for a lot of actual disabled people.
