Of course it is. They didn't finish the game for years. There wasn't even a "Hisao" yet. That's actually why I nomiated this one, just to bring it to people's attention how different some of the earlier ideas where.At the risk of seven years bad luck for commenting on unfinished work...this is pretty obviously unfinished work.
It's fun in a "what could have been" sense. Still, I'm glad what we got wasn't that. Rin became far less cliche and Emi became a much stronger character.
If I'd thought about it, I probably would have also posted the ending where Hanako goes full on crackling supervillain and kills everyone to go along with these two.