I'm a bit confused, are we talking about "harem" as a porn-game genre or as a real-world concept? If it's latter, then your mentioning "MC having sex with multiple women" has little to do with it - while I'm not much of an expert on this theme, I'm pretty sure that real-life harems are built on the idea of "spreading marriage duties between multiple wives", with every wife having her own different role in it (and sex doesn't necessary involved in them). If it's the former though, then you're just nitpicking at the genre itself. Many other games of this site also have this tag, with or without any "relationships" or "feelings" in them (as an extreme example - rape/chikan games).
Quoting a post from 3+ years ago (when the game was at ver.0.2) is nice and all that, but are you sure that this still holds? It's common for devs to change some ideas/story directions as the time passes.