I don't know what's going on with the dev, but if one route needs to be dropped, it makes sense to drop the NTR. For the story that is set up so far, the non NTR makes much more sense and would be easier to write.
You are the chosen one. Do you protect your loved ones and save the world or abuse your powers for corruption?
You are the chosen one but your powers don't work. You need to be cucked to awaken. That is a wholly different story and the devs already separated the NTR route in the last few updates since this route is not really possible to piggy back on the non-NTR route.
It probably became too much work to essentially make 2 games concurrently, so focusing on one rather than abandoning the whole thing seems like a good idea.