Pretty much. The weirdness IS Demon's Souls' personality, and I don't think Bluepoint understands that in the slightest. They seem to be trying to make it "serious" from what we've seen so far, and it's certainly making it look pretty on a technical level.
But it feels like a remake being made by people who think the original game was kinda bad and needs to be "fixed".
Absolutely agree with this and the the post you quoted. I thoroughly enjoyed this unfinished aspect it had to it, an impression I mainly got from its simplistic architecture and rather empty levels, that were, to my surprise, brimming with content to be discovered. I loved that contrast.
Combine that to this ethereal feeling, this thick ever so present haze accompanying you throughout the game, and you get something truly special. It will sound stupid to some, but those are a few reasons why the game is one of my all time favourites. And the low fantasy setting.
Edit: This is not to say I'm not incredibly excited for this.