I'm not sure my opinion will be valid here, since it's become more of a personal matters. But I had my big post where I also mentioned a good ending for Harry, where he could break up with Laura. It's also safe to say, that I have seen other people in this thread, who like NTR and still wanted that ending too.
The example with game that would be called "How to kill Harry" it's not a good one, IMO. There is big amount of works that sounds like it's about one thing and then it turns out about another one. And it's actually the most common way in games that has different endings. Yes, you could kill Harry 10 in different ways, but you also could add a secret ending, where you actually speak with him and in the end you decide to spear his life. Hell, it even can be the true ending, as some kind of philosophical message from the dev (Like everything you needed is to understand each other. It's blunt, I know, but it's just an example), that give you his piece of mind. I saw such games and it was cool.
As for the APBLU, I have seen devs previous work and it felt more like a kinetic novel. The only choice you had was at the very end, but they all led to a bad ending. I figured it's just the way this author work with his stories. I didn't really like his previous game, but I did not tell anything in that thread, because I just decide it's not for me. Yet I gave his new game a try, expecting to see similar things here, but ended to like it much more for other things that he did. Of course, I had my expectations for different outcomes, when the dev actually introduced choices for the player. I thought they could lead to more interesting endings than what I've seen so far. But at the same time, I understand that, people who are fans of this genre probably just would not have appreciated it. If more than one ending would be not about Harry's suffering. Although I wouldn't give this game 3 stars like Sumatra 3D did and in my personal opinion, this game deserves a solid 4. But as I said in my big post, I don't consider myself a fan of the NTR genre, so I may just not grasp what fans really appreciate about this work.
But at the same time, I think I can talk about more neutral things, and in general express my opinion without claiming that the developer is necessarily wrong and should have done things differently.