There are a thousand things you could pinpoint about how misinterpreted Demon’s Souls was in its remake. Latria is not one of them. It’s by far the most true to the original area.
However, Boletaria was transformed from a medieval castle to a Neo-gothic castle/cathedral that makes no sense in that world.
Not for me. The original was a dark, dank torture chamber. The only sounds were the buzzing of flies and screams of victims. Later you'd hear the lady singing two notes in her cell, but it would only appear when you were close. The remake, it's a much cleaner place, and for some reason they play the song that was used after defeating the final boss in the original. No clue why thought it belonged in Latria. It's a pretty somber piece. Invoking a battle well fought. Also, since the volume stays the same throughout, it does nothing to help you locate the singer. That signals to me, they didn't understand the game they were remaking. Remaking a game so loved requires a humble approach. That is not what we got. Hell the Bluepoint lead even has a comment in that interview saying "the game is not as good as you remember, but we're actually making it good this time". No different from the current Bioware employee saying "this is the first Bioware game with fun combat". Just reeks of arrogance, and they've got nothing to back it up.
Boletaria is another point of them either:
A. Not understanding the source material
or
B, Understanding it and being arrogant enough to change it anyways
There is evidence of the latter since Bluepoint includes an optional filter to give a closer color profile to the original. "We made it better". All the overgrowth just betrays the story. This isn't decades or generations after a collapse, it's the middle of one. Also, you cannot interchange a defensive fort for a gothic cathedral. Again. they either didn't play it, or thought they were better equipped to tell the story of Demon's Souls than FromSoft was. In the end all the environmental storytelling that From games are so cherished for actually confuses the story in the Bluepoint version.