I already gave my POV on their "dumbness" but I quite agree with those who "resent" them for not appreciating the brothers. That's true, I can understand they don't get the father since he doesn't show anything or explain them his decisions or even thinks of asking them what they want. BUT the brothers are trying their best to make them comfortable and up to here they seemed to at least understand that, so it's not logic how they despise them here.
As expected for me, Riolu is "contaminated" by their attention, but he won't have time to hesitate a lot since the "revolution" is already happening... or at least that's what is implied, but now even I want this arc to end faster because I feel like those circonvolutions are only confusing the author and us with him/her.
I dare hope the end will be clean and brief, so as to be easy to understand who did what, why and how will the twins react when they know. So that we can understand better how they think and on what they base their decisions.
The synopsis was original and promising, but if it only gets more and more confusing because of a lack of explanations from them, I'll quit. It would be the first time I drop a webtoon/manga/manhwa/manhua. Maybe I'll search for the novel, if it is an adaptation problem the hope/story can still be saved.