Oh, I wasn't complaining about the lack of scripting complexity. T.O.D.'s main strength always has been story, art and the core game balance, not game mechanics (although I'm personally all for the addition of game mechanics, because my main critiscm of the Tsuki-no-mizu games is that sex is almost entirely consequence-less, which I think dulls the impact). Being conservative with the features means that the core of the game is typically high quality. T.O.D.s dream game? Perhaps, but not convinced. I'm not certain he's the type to say "this is my magnum opus" for anything (although he is pretty proud of Lilium Union - Laurel is currently on one of his business cards).
The impression I've got so far is that futanarisation will be Kokia specific, although I'd have to go hunting for my source to double check that - but it's basically because a few times it's been mentioned that the content for each character does focus around a couple of kinks. Also, practically speaking futanarisation is a lot of additional art for this game, because it essentially doubles the amount of character status poses in battle. Now that I think about it, doing some basic maths from the demo version and the planned total number of character poses (about 200) strongly suggests that not every character will have futa status, as you'd end up with not a lot of other content (in fact, you'd end up without content which is already known to exist). Although I suppose the plans could have changed...