What’s the saying, the devil’s in the details…
I can't disagree with the video more. First off, as a musician myself (to a degree), if you played a boss theme from any Souls game I would not be able to tell you what boss or what game it's from. While Souls boss music is great, in the end it comes off as just a high tension operatic theme designed to bring about anxiety in the player while battling, and that's really about it.
As for the atmospheric changes and visual changes. Souls games have always been driven by interpretation by the player. A lot of the "little" details are abstract and there really isn't any proof that the level design or any of that shit is intentional. The human brain is really good at making connections with things where there aren't any. And this is boosted by the vagueness of the Souls games in nearly every aspect, which does a fantastic job of letting your mind run wild.
What that means is that when you visually upgrade an old game like Demon's Souls, those same vague details change simply by nature of increased detail. Much like what will happen with the Silent Hill Remake. Simply by updating the graphics the game will fundamentally "feel" different and there wont be anything you can do about it as a development team. This comes with the territory. That being said....come on. The Remake plays better, looks better, runs better, feels better to play in every way. All his problems basically fall into unavoidable graphics details that change with upscaling and you can't avoid that, take the Vanguard Demon he complains basically that the color has changed and there is too much detail in the new model. But the original Vanguard Demons look like ass, because they are untextured character models. His complaints about the Fool's Idol can be waved away by her magic brainwashing the prisoners into seeing whatever they want. A lot of detail had to be added to the character models form the ps3 game because a lot of the models wheren't even textured, there was NO detail, and you can't do a game like that anymore.
Not gonna say it's a perfect Remake (but it's close). With a Remake there will always be sacrifices that have to be made in order to update the game, and you can only get so close.
And I would have been on board if any of his arguments when gameplay related. Items not working the same, enemies not behaving the same, you things that actually affect the game's core. But it was all just a artistic opinions, which....okay fair enough, but a lot of it was also unreasonable.