I'm very satisfied with Marina 2. I think you're forcing your fetish onto others man.. Can't you just accept that others have different taste than you? I mean some like netorare, some like netori, others like netorare with pregnancy ending. And you know what, that's cool. But forcing your ideal fetish and complaining if certain title doesn't fit your taste, that is not cool man. Actually, if it goes according to what you want it's gonna be worse game because it's too common for NTR game/manga to have that kind of plot and it's simply not very realistic. I will applaud Atelier Sakura if they dare to break from previous games and making Marina fall completely, I'd love to see it but i don't think it's gonna happen.
About Onboro, I think he's trying to approach with more realism with his scenario. You can see it from his games, i.e: Nagasare Tsuma, Mariko, Marina, dll. It's totally different from say Orcsoft game, the wife usually fall to Co-worker, past boyfriend, and they usually fall slowly.
I agree with you, Tsuma Kanraku is a great game :). It also has netorase and netorare element in it.
Yup, I'm also one of few people that actually enjoyed 2nd game more. The video interview is awesome.