I suppose its hard to say. They just make do with what they have. Unlike tripple A games by huge publishers who can reallocate vast amounts of ressources at short notice, Urban Games and its publisher probably don't have that luxury. So in my limited exprience they iterate on their knowledge and technology the old fashioned way. Which takes longer, and sometimes you lower the versatility of some of the features.
Where this game does shine brilliantly is not in its simulated form. I feel like it does so as virtual sandbox space for building your dream model rail road. Thats also where the strength of the supporting community lies. Creating assets and maps for all kinds of model railroad. Of course I do also enjoy the fact that I can liven up the scenery by using some of the implemented gameplay loops as public or goods transport. But you have also some limitations there. The more you rely on the simulation, the more the performance of your map is inhibited.
So quo vadis Urban Games? Hopefully to some more improvements. The performance has increased greatly with the last patch. At least for both, my Laptop and my Desktop PC. What they want to achieve. The best possible of two worlds. The Sim players and the Model builders.