I do agree with you about the 'togetherness' factor, for sure. But in a way I suppose it was inevitable that some differentiation would eventually occur if more resorts were added; for one thing it'll only increase their occupancy if they cater for a wider variety of markets but also the parks would have struggled to cope if these thousands of new rooms all had Express and all the services of the original resorts.
You do raise an interesting point though. I wonder how popular the amenities of each resort are / will be with guests of the others? I suppose some Hard Rock and Portifino guests might go to RPR for Emeril's, and perhaps the same might happen with the Portifino's flagship place (I forget the name), but I wonder if there's much need for interchange apart from this. All are really well equipped with great pools and eateries to suit different tastes, and although bowling is unique to CBBR it feels much more like something you'd do as part of that experience than something you'd go separately for to me. In any case, it's still easier to swap between resorts without water taxis than it is at WDW, as you say.
I just don't want an influx of other resort guests stampeding into RPR and ruining the tranquility of my late-night nachos and fish tacos at Bula Bar... :sneaky: