While I agree in principle, keep in mind how many years it took for Disney to do those things. And also look how Disney has started going backwards on that stuff again.I mean that Universal opens up a new store HP about travel, create cool travel posters for store decoration, yet don't initially sell them. There's a complete disconnect on Universal's part, in my opinion with the overall design and selection of their merchandise. Disney has realized what people want:
Dapper day dresses? Here's the dress shop! Home goods? Look at all of these stores we've opened! Millenials want Disney stuff, but don't want to look like a permanent tourist? Check out Disney Style. People love retro? We made a whole line of Mousketeer merch. Hey, they even reference their past attractions and general park history in some merch!
Universal lacks this diversity and variation in their product-line/ an overall willingness to be self-referential in their product. They don't really have home goods, rarely have nods to their park history, and overall still feels cheap (aside from HP and HHN merch.)
The Marketplace Co-op is the best example. It went from a collection of shops that each had unique stuff to turning into something completely generic featuring the same things found in WoD and every gift shop in every park. Anything unique (like those dresses) are in all the stores on property, thus killing any unique aspect of the merchandise.
With the idea of new merchandise like those travel posters, I'd guess Universal has them in the pipeline in some stage, but they really want to gauge reactions to the product first. Why spend thousands of dollars on a product no one will buy? Make sure there is a demand first, then jump through the hoops of product development with WB/JKR, then get it produced.
While Disney has a pretty good track record on merchandise trends, anyone who's been to one of the outlet stores here in Orlando or to Cast Connection can tell you there are also some spectacular misses they make. Remember how they couldn't keep Banshees in stock last year? There's now a mountain of them on sale at deep discount at Cast Connection. Did they over order? Was it the demand was just Disney Lifestylers and once they had what they wanted that was it? It's an expensive mistake to have a huge inventory of stuff no one really wants...