I've largely lost interest in this story as it doesn't really deliver what the title or blurb implies. It ends up focusing on the demon king stalking his daughter more than his relationship with the wife, who barely ever appears in the story.
The biggest problem I can see is that apparently the fan translation is already approved by the author, so people might be upset if it's shut down in favor of an official release. Or it might become another Rokujouma, but that means it would be less viable commercially.
@jon-mitchell I'm not much into streaming - prefer owning and having it on MY server, which works even when there is a problem with internet.
The fact that it's being streamed is probably why I can't buy a legitimate copy; several things I've been trying to buy are locked up by Netflix and other streaming services until their exclusives run out.