I honestly had similar thoughts. I’ll admit I’m a much bigger fan of the Potter IP than Star Wars, but I agree that so much of the Star Wars story is too connected to a small core of characters that limit how connected guests can feel to this sort of thing. There’s been a good bit of talk about how the opulence of this place reads as “bad” in almost every Star Wars shorthand, and it’s accurate. There are also so many retconning plot holes in its story that may make narrative sense but that doesn’t mean they’re narratively necessarily.
Harry Potter, on the other hand, is proven to be successful without an over-reliance on the core characters because the character map is so sprawling and the narrative world (ie - the story) is so expansive. A random wizard hotel (not the Leaky Cauldron, as that’s a hovel) and the appearance of random Death Eaters or Order…Phoenix members would make more narrative sense because both sides operate covertly.
Imagine a three-day stay at the “Emerald Mermaid,” a centuries-old wizard hotel, built at the bottom of a lake to participate in a Wizard/Muggle Enrichment Conference. Hosted by the Ministry of Magic (and spearheaded by Arthur Weasley), this event enables wizards and muggles to learn more about each other. There are opportunities for wizards to teach muggles how to do magic, learn Wizarding history, magical beasts displays, shows, or guests can just enjoy the hotel (or spend all day at the parks… whatevs). Muggles can also opt for a day-trip (via flying Knight Bus) to the wizard “commerce hub,” Diagon Alley or the “seat of government,” the Ministry of Magic. However, there’s the potential that Death Eaters have infiltrated the event. Luckily, undercover Aurors and the Order of the Phoenix are present to fight back.
Structurally, the story plays out in a manner more akin to Sleep No More. Various story beats take place in various places throughout the day but guests are not tied to any specific thing. Primary story beats can play out during meals or shows. Smaller ones, literally, wherever - hallway, lobby, pool, whatevs.
Guests don’t have to be active participants but can interject if they desire (and potentially effect the story by exposing a Death Eater early). They can simply watch the show or ignore it entirely and enjoy their stay at a “wizard hotel.”
If Disney took the same concept and structured it in a way that allowed more (some?) passivity, they could have something that’s absolutely dynamite. As it stands, it just feels needlessly over-produced in a cringe way.