Much of what you listed is pulled from general Final Fantasy elements, which in turn are pulled from various mythologies.

THough to be honest, the Allag give me a "modern day" feel. their museum showcases how automation was invented to make life easier, which is what we strive to do in the tech industry. They built laboratories to experiment on living subjects; something we do too. The speech (in English) is modern compared to the Shakespearean like speech used by most npcs in Eorzea.