There was a recent episode of Podcast: The Ride with Andrew Barth Feldman where he talked about his trip to the Galactic Starcruiser that hews pretty closely to your experince and it explained the appeal more than any of Disney's advertising. (It actually sounds a lot like Evermore but more focused on a single experience rather than some sort of continuing story.) It's ideal for theater kids, improv folks and tabletop RPG/LARP enthusiasts. If you aren't prepared to throw yourself into the story, you aren't going to get any value from it. He made it sound fantastic. When the naysayers complain that the rooms look too small or the activities look dumb or the food doesn't look good, it's because those are not the focus of the experience, it's all in service to the story. The cast and the story are what you're paying for. And I think it was probably a first-in-class experience there.
The first problem was that Disney didn't really communicate that, hell, I didn't really understand it until I heard that podcast. The second problem is... how big is the clientele for that kind of experience? You really have to be an active, willing participant to get the most out of it; you have to realize it's not a relaxing getaway, it's like an interactive murder mystery that you act (improv) out over 48 hours. I don't know that even with an IP that kids love like Star Wars that kids are going to understand it or be able to really engage in. You have to be pretty confident and savvy to "yes and" your way into an experience like this, so it's not really suited for families at all. And the third problem is the price. No matter how committed you are to it, $5-6k is a chunk of change for most anyone to throw at a 2-ish day experience. A fourth-ish problem, and maybe this would have been addressed if it had lasted, is that, with a smaller target audience, I would have to imagine it would have had to depend to a decent extent on repeat customers, which would require eventually updating the story. I know you can role play into multiple factions and have different experiences in the same story, but even if you wanted to play each faction that's 3 or 4 visits before you're replaying the same thing at least once? Unless it just turned into an expensive version of midnight showings of Rocky Horror where the guests all throw toast together or whatever they do.
Knowing what I do now, I really wish I could have experienced it. But even knowing what I know now, I don't know that I would have been willing to pay even the 30% discount prices they were offering. I wish they could have found a way to make it profitable, or at least break even and keep it going as a boutique experience that could support itself. Hopefully they can learn from their failure and maybe come up with another way to offer a similar experience. But not like Evermore which appears to rely on free labor.