I, for one, appreciated the contrast - going from the modern setting of SD, to the “ancient” setting of CotSG. Of course, there were still ancient ruins in SD, but, in CotSG the ruins and monuments are the main focus and the map isn’t as populated with humans.
You get kind of a similar contrast going from the Transylvania maps to the Kaidan map. BF, SF, and CF are all somehwat modern and populated by humans, but in Kaidan, even though it’s more hyper-modern, it’s almost entirely deserted.
Whereas CotSG is practically deserted b/c humans have just recently been made aware of its existence, Kaidan is all but deserted b/c of the bomb disaster and the quarantine.
I can appreciate the contrasts between Transylvania and Kaidan, as well.