From most of my pre-trip research here, it seems DTD tends to be a time killing stop for most vacationing people. A place to spend some time when you can't justify a park ticket. Many folks spend a day at their home resort pool and another portion at DTD. We won't be going, as this is our first visit(in the last 20 years). However, I can see the draw for a lot of returning Disney fans.
Disney is in an odd place with this area. It's not a park, so no admission is charged. Yet in order for guests to use it an enjoy it, you risk losing a park admission for that day.
It makes sense to have it's main draws to be evening based, so it doesn't draw folks away from the parks. That also makes sense for the working locals in the area.
While they are trying to lease out to third parties, I think it might make sense to have some sort of disney general store in the complex somewhere. Not quite a target or
walmart, but some place to get those general vacation supplies, you don't feel like taking on the plane or on your long voyage, all within the disney transportation system.
In the would have, could have, should have department of the master plan, I think they missed the opportunity to make the downtown disney the central transportation hub. It would have only made sense to base the transportation center, in what amounts to a glorified gift shop. Just like the rides exiting through gift shops, if you could have your guests exit the resorts through the main shopping district. Unfortunately the geography of things as it is now doesn't support that.