Someone might, although the Emporium doesn't really look like a Barnes & Noble to me.
That doesn't really matter, though. Here's the issue -- when looking at the majority of Disney's new builds and renovations over the past few years, it seems obvious that theme/place setting is a tertiary concern at best. There may be some small nods to it here and there, but the goal is to build modern spaces. Intricate details that point to a theme are an afterthought if they exist at all. The Beaches and Cream renovation are clear examples, and even something like the new Polynesian entrance displays a clear lack of interest in building out believable, detailed spaces. It could have been pretty good, but they did a halfway job with it and said "that's good enough!".
All that goes out the window if the space is themed to an IP, though. They're still very willing to build elaborately detailed spaces when they're in service of IP place setting like at Galaxy's Edge.
SWGE furthers my point, though -- the shops there are pretty small and cramped due to theme. Would anyone be happy if they turned one of them into a giant, open modern space (something like World of Disney) full of Star Wars merchandise, or even just ripped out a lot of the theming to create more space? That would destroy the theme of being on Batuu. My complaint is that the non-IP locations deserve the same level of theme and detail that the IP ones do. I'm just as interested in the Main Street USA theme as I am the SWGE theme, if not more so.
Was Disney always great about it in the past? Of course not. It's not as though the parks were 100% perfect in, say, 1990. But they sure seemed to care about it far more than they do now, and the fact that they did care is a big part of what made Disney Disney to me.
EDIT: Can't believe I forgot to mention the Riviera, which is like a monument to lack of theme/detail.