I mean, Universal majorly lucked out that it happened to own the rights to a major franchise with multiple locations based heavily on shopping

I think the thing that makes Diagon Alley and Hogsmeade feel less like "shopping malls" are the magical touches and homages to the movies sprinkled just about everywhere. I could spend hours in Hogsmeade just...
looking. You can also, for example, view the Ollivander's show without purchasing a wand.
I haven't been to SWGE yet, so it may be just as immersive with the same potential to enchant without buying. But I do feel there is a difference, even if that difference is based on us Muggles having previously fantasized about purchasing the same butterbeers, strawberry-and-peanut butter ice creams, and magic wants that Harry did. I don't know how many people fantasized about drinking a blue milk before Batuu.