Nah, I don't like this protagonist; she's not fair, pure, or that strong. This whole world is rotten, and so is she. Having her as the protagonist and the story told only from her point of view doesn't interest me.
This world also makes absolutely no sense; apparently, they kill most people who appear because they feel threatened? What's the point of continuing with this nonsense then?
Yeah... The girl who controls time probably already knows the protagonist quite well and has probably traveled back in time at least once; she'll probably ignore it and pretend she doesn't know she died every time... Not predictable at all..... The killer will eventually lose the urge to kill her and feel sorry for how much the girl trusts her.... wow.... The church was actually evil?? What a surprise....
It's no coincidence that it was apparently cancelled. All that political drama at the beginning is so lame... The story is more shounen battle than romance.
On the first two paragraphs: Ehh, I kind of disagree in small part but can understand where you come from and I'm happy that I'm not apparently alone with these misgivings. On the disagreement: I think there is much of interest in an actually villainous protagonist trying to justify themselves while falling further. There is also a point in there being unilaterally unpalatable things that still can't be eschewed, no matter how much one wants to, but this one just straight up isn't that.
But where this story falls flat so hard (and where I think I find a lot of agreement in what you wrote) is how confused the story is in this and how incongruent the aesop is upon hitting you in the face. MC constantly reaffirms how she's "the villain", but the story is constantly so busy trying to stage is as anything but that. The whole moniker of a monster ends up looking like some fucking attempt at a stage role, instead of what she actually, genuinely is. As one example among many, you simply aren't good enough to print ch 4 pg 9 and still have your protagonist end up like you want her to, sorry to say. She's a knife swinging cultist, not the tragic, burden ridden antihero. And trying to play the reveal of the church being evil as some grand revelation would work if that wasn't such from ch 1, even past the fantasy church meta har har. Even a few minutes of thought behind the shown logistics and approach of the church ends up with it being beyond the moral pale.
And on the matters of the deuteragonist or the plot predictions or opinions on the attempts at political drama? Couldn't agree more. This story is interesting in very few spots, frustrating in the most important ones and pretty bland in the rest.