Maybe re-evaluate what you consider the story to be and it won't all be seen as a "troll" to you.
Nah, the story was initially blatantly focussed on the 'brother/sister' relationship. It was 90% of the first update or 2, it was blatantly used to draw in subs and fans. We got to the very brink of them consummating their relationship, then the 'sister' just vanished from the story. If she was not intended to be central to the overall story, then it was a very deceitful and disingenuous beginning, presumably done because incest is a popular fetish that is guaranteed to bring in the punters.
You can say 'the sister was never intended to be the central relationship' now, but it is a clear bait & switch if you do.
This is without even getting into the other examples of bad VN writing that we're seeing. Such as starting up storylines with multiple new characters then just moving on to others before they reach any kind of satisfying conclusion. A classic example of another game doing this is 'Something Unlimited' and if people paid attention to how much stick Gunsmoke got for it, they'd probably realise it isn't a great plan. Also note how SU has moved away from that model now.
I'm not saying this is a bad VN, I kinda like it. Not as much as I used to, when I backed it for several updates after launch, but I still think it has potential. But it's clearly been losing it's way. Maybe it's starting to get back on track, we'll see.