The Square side of SE does not give a shit at all about game preservation, just money.
Whereas the Enix side like Kawazu is actually run by artists who go out of their way to maintain the artistic quality of old games in new versions. Which is why the DQ stuff and SaGa stuff is quality and the FF stuff is ugly stick outside FF4.
That doesn't explain Mana though since Legend of Mana remaster actually looks solid effort and the collection of Mana ports were fine and the Mana 3 remake was fine. I guess whoever the Mana producer is cares about this stuff too.
So it's just the FF producers going lollll, though didn't the torch of FF producer just get transitioned to Kitase? Maybe things will get better, idk.