I actually think the graphics are well done, too. The pre-rendered 3D backgrounds in the original haven't aged well in particular. (I can appreciate computer graphics from the 1970s to 2020 but there's something about most 1990s CG that I just can't stomach)
They aren't even done
, they upscaled them through AI, and very hastily, I'd bet; ESRGAN can do better than this, but even some stuff will be too amorphous to "replicate". (its algorithms base their process on existing pictures)
It seems more consistent than the mess they did with Romancing, but it's still very cheap looking at some spots. Look at the cliff Red is standing on in the title screen...
Since Squeenix won't provide a "classic" mode with the original art, it'd be terrific if some madman modded the original game with the additional stuff, now that we'll know what it is.