It just feels half assed to me. Like, half the battle (remastering the tile graphics), and then they just called it a day. So you got these really nice looking, detailed tiles, and flat looking, x2 pixel scaled characters in comparison. It's one hell of a clash; they should've either done a full remaster or just left the original graphics in entirely, instead of half and half.
But at least we can hope the gameplay is a bit more polished. Usually the engine isn't directly copy pasted, but upgraded in some way, like running at 60 FPS or something.
I can see why you feel that way. At the very least, it's pretty clear SE put their heart and soul into just how nicely designed the website is, as well as how the trailer accurately mimics the game's intro, and manages to grab the attention of both newcomers and people who have been waiting for this game to get an official translation. I feel like those two factors make the clashing feel more like a stylistic choice rather than them just half-assing it, at least to me.
I imagine some of it will be, though I've seen some videos of it, and it seems like when it says "faithful" recreation, something kinda fun that I noticed is that the player did a glitch to make someone who's not able to be the emperor become the emperor, and if I recall, the same bug is in the original game as well. That being said, I imagine the developers probably recreated that glitch simply because well, if you can have more potential emperors, then logically that would actually increase the game's replayability, so I can see why the glitch would remain intact.