@Tes yeux noirs,
The set (city, exterior) of 'Gotham' was gothically superimposed to generate a more (batmanesque) intimidating (darker, with a hint of insidiousness) backdrop.
Guess the director/s saw it as do I?
Don't ask what the creators of 'stereotypical' architecture perceived from their creations - Rather, ask - What the intended result produced for the FINANCIERS of those creations...