When people say they want it to "go back to its roots" I don't know what they're talking about and sometimes I think FF fans complain just to complain.

As I said in a thread in the XV forum, Final Fantasy has always innovated and tried new things in new worlds. The modern techno thing has arguably been prevalent since FFVI - 20 years ago. Regardless of tech level, every Final Fantasy has had a fantasy setting. Even XV in its "realistic" setting clearly has fantastic elements like the gigantic monsters, magic and high octane fight scenes.

Having a good game is more important than the minutiae of the style of fantasy setting presented. Would FFXIII be any less of a turd if that exact style of game had been presented in, say, FFIX's world?