Personally when I hear 'harem' the entire attraction to me is that multiple women means I can watch them do eachother, or they can do eachother whilst I'm doing them.
It's unfortunate that from what I can tell the focus is just on dicking down the girls right now. Or watching them get dicked down, same difference as far as I'm concerned since when in any H-game you really are just watching, even if it's POV I can never convince myself somebody's rendering or somebody's illustration is my body.
The game probably just isn't for me and that's fine, I just felt like saying something because I'm seeing page after page after page of projects listed here, a nearly unbroken chain of games that amount to 'dudes dick down some hot girls'.
When you consider that, depending on who you ask, the most popular internet search terms are either 'futanari' or 'lesbian', and those are two entirely separate things, I have to come to the conclusion that the majority of the internet would be quite bored if their only option is watching dudes have sex with chicks. Games that are aware of this difference in demand versus supply might be a lot more successful and popular than those that ignore it.