It's been 200 years. If they haven't made any technological advancements what so ever, I'll be stumped. Even of the technology is mostly magic-based.
Isn't the suggestion that things are on a downhill slide since Oblivion? Problems in Morrowind, civil war in Skyrim, etc, etc, etc.
(Plus, there's the part where most fantasy worlds, in games and in novels, don't have the speed of tech advance that we've had IRL. The existance of magic, among other things, would influence what "needs" there are, and those needs are what typically drives invention.)
...realistically, games don't want to change their settings too much, otherwise they risk losing the playerbase who liked the previous games. And, if someone's interested in playing a game in a different tech-base? There are other games for that.