Nyanta and Pomeko solved waaay too fast, the premise was super interesting I even got to read the novel, not sure if it was the first one with the trope, but I have seen a lot of other ones that are similar, problem is all of them really can't move in a normal pace and it suddenly turns into another genre fast (harem), that's a point for nyant for keeping the main couple stable.
I don't get the hype behind Nyanta and Pomeko, tbh. I mean, the writer definitely does a great job at making the characters unredeemable especially the stepmother (I hated her the most) but to say it's one of the best things written is an overstatement.
I remember one person praising it saying it has well-written characters but I don't see it. In the beginning, sure, because it focuses on the characters who screwed him over but once we reached a certain point, it only focuses on the two MCs and their development. We don't get anything else past the other characters, no change, no redemption, except to leave the MC alone.
This manga even though, it has weird twists and turns, shows better character development because we have chapters showing their past relationship with the MC and how they screwed up with later chapters showing them trying to change themselves to do better.
Either way, I think the problem with these types of stories is how to make it longer. We can only go so far with it once we know who the characters are, what they've done and how the problem is solved. You could probably end these kinds of things in 10 chapters. I think with this one, they're trying to give characters redemption while at the same time add more characters and problems to the MC where he has this "bad luck" skill to add to the situation.