If this set were split apart, into say, just the Manor, then the Batcave, etc, you would a better cohesive item than this. And it's not really consolidated into 1 structure. Sure it all connects, but it's 3 individual sections that can be connected together.
I think you are reading too much into licensing fees. It almost reads as if the fees got more expensive the bigger the set. Which makes no sense. Also as far as overall cost, it doesn't look like a $270 set. And that's part of my problem with it. To make it 'feel' more complete, you have to 'build' upon it. I'm sorry but I don't believe that should be the goal of a set this big with nothing else at the moment, or even possibly in the future. If you want to do that, it needs to be a bunch of smaller sets. Look at the simpsons for instance. Sure if they only did the house and ended the line, it wouldn't feel 'incomplete', or that I needed more stuff to make it complete. It's good enough on its own.
I think you are trying to hard to rationalize a pretty poorly designed set. It's similar because it IS trying to hard to do too many things. And I doubt it's just the number crunchers that are a hindrance to the design of the set. And I agree with @brickcrazyhouse. It does appear to be designed by the B-team, just like Assault on Hoth. I just don't understand this latest wave of exclusives. I mean in just the last couple of years, we've had excellent models, such as the GBHQ, Slave 1, AROCS, Kwik-E-Mart, Sandcrawler, Tie Fighter, etc, that this is just so odd from Lego to see two big expensive exclusive sets, look like they were designed by a child with limited pieces at their disposal.