Yes, that's a huge problem in my opinion.
Some time ago I thought that a good idea could be making Metropolis so incredibly advanced - almost an experiment in itself - and so socially unbalanced that every hero could easily get mad just by living in it. If they would make Metropolis the financial and technological center of the world - and a vision of what the entire world will be in some decades - Superman would have a very good reason to stay in it. He would preserve the focus of present AND future world. And just by making Metropolis work in the right way he would cause positive consequences all over the planet. But it would require a huge restyling and a radical reinvention - something like Zalem/Scrapyard in Battle Angel Alita. I think that they will just keep the "New York by day" version with some aesthetical deco elements.