I really am getting more and more put off by games with multiple LIs like this that have no poly or harem path. It seems less like 'realism' as others have claimed and more like a way to inflate playtime. Almost like this is the modern equivalent of those sandbox games that have you grinding for points.
A lot of dev time goes into each route and when they are exclusive like this you get large amounts of effort that goes into girls that aren't really an option unless you are playing multiple paths simultaneously. It takes time away from advancing the actual plot. The main story doesn't change, so each path after the first is like watching a movie with a 'twist' as its main selling point repeatedly.
That may have been a viable strategy in the past, but there are too many other VNs out there to follow that have new and engaging stories. There isn't a reason to replay a single VN over and over again just for different scenes with the same overall story.