I disagree, but mostly since i just HATE medieval universes with a passion, which is why i only became a Zelda fan with
MM and later games, when they started to get away from all this.
Zelda was a medieval game until
OOT, but it's been a long time since that. Now it's really a parallel world on its own, which still is a bit medieval, but not only that, it is a mix of a lot of different western and eastern eras.
Majora's Mask was the game this started, people had cameras, what looked like electricity (this was finally called electricity in
SS ) , and a much more modern/Advanced civilisation than in
OOT.
And now, i have to say i really like the idea that the master sword (and many other magical things from earlier game) are in fact leftover supercomputers/supertech from the old civilisation, technology so Advanced it looks like magic to Hyrule's people.
I've never found the Zelda world this fascinating before.