Agreed. While there are certainly themes to the recent stuff (Tzocatl's implicit native American background, Akashic's Silk Road themes), Andreas actually tends to have us throttle back anything that implies a specific campaign setting or world type to make the systems as easily integrated into a campaign as possible. Note that Middle Eastern or South American naming conventions are a bit different than saying "All Viziers come from fantasy Egypt and all Advocates must come from fantasy South America".