I don't know anything about dual family. What I do know is, that if there is no communication from the dev for 3 months, the game gets marked as abandoned. I just looked at Dual Family and it is not marked as abandoned, the only other reason they would mark a game with it is if the dev specifically asked them too.
Yes, of course, the F95 staff can change their own rules, but that is just reaching for something that, at this moment does not exist.
At the moment what does exist is the current guidelines, and with the current guidelines, the game is not abandoned.
As far as him dropping in here to give us updates, once again he does not have to do that. The communication guidelines do not have to be communicating with F95, it can be on any platform. It's not like "oh he has not replied to the F95 thread in 3 months, instant tag." ICSTOR might have never been on here in his life, the game would still not meet the requirements.
Also, your initial point is just untrue, just because the site is a pirate site does not mean the admins do not take it seriously. At least from what I have seen on here, they follow their own guidelines.