I actually like this change from the novel

Cliff's and Rise's endings in the novel were not satisfying at all. Rise became unbearably 2-D and got no comeuppance for her murder of all the ediths and all the plotting. She was punished after enjoying being the duchess for a long time. And then Cliff just stayed the duke and eventually married another lady with no consequence of having attempted to kill edith.

And all this time the main couple were away in the far off territory, receiving no rewards or apologies from the duke, duchess, cliff or rise. They were happy and they made the place prosper, of course. But what kind of a payoff is that for all the shit edith had to go through. So I much prefer this. The only thing i didn't like was how much they downplayed and removed the shit edith went through in captivity, and how much she was ready to give up. That would've made this entire comeback much more satisfactory.

I can see why the people who love the novel would like to preserve the original storyline. But honestly, even with the story changes in the manhwa, it isn't out-of-character for cliff, rise and others to act in this manner, so these changes are quite easy to swallow. Eager to see more.