Exactly, I think it would be good if it really was like Hero Boy Ken, instead of Kirito finding out and starting to like being a cuckold, he could fight for her to undo the situation, but in the end he couldn't, he fought but failed. On the other side we would have the route as it is now, which he never discovers and remains the same until the end. I think that replacing the future netorase route with this route where he would fight for Asuna would be more interesting, because netorase really comes out of nowhere and has no logic, unfortunately we will only have what the developer has already written for his story.