While it is a shame to see that this game is coming to a close, I can't say I'm too surprised. That fact that this project has been going on for as long as it has and only making around $300 just tells you all there is to say.
I think it's hard to pinpoint where exactly this game has gone wrong, but I do have my own opinion (and it's just an opinion)
I think one of the things that could've pushed this game down the path it has come is that the story has kinda backed itself into a corner in terms getting with the main girls. What do I mean by that? Some of the most beloved characters in this game aren't even able to physically interact with the MC. Take my personal favorite character Trish as an example. She wasn't really used throughout the first couple of updates but has managed to grow quite the fanbase, but there isn't going to be any physical interaction with MC, which is ultimately what most people wanna see.
I wanna see something between MC and Trish happen. I wanna see the same struggles that MC goes through with the cheating route. I wanna see Trish fight her feelings as a relationship starts between her and MC. I wanna see a relationship blossom with the writing that Silk can write up. I wanna see it, but that can't happen the story itself has made it to where the MC has to be in Thailand on his honeymoon. The fact that we have been limited to just having physical interactions with three girls out of six main girls (correct me if I'm wrong) says a lot in my opinion, because people can't see Trish, for example, build her relationship with the MC and, ultimately, get a lewd scene with them.
As someone who did at one point contribute to this project through Patreon, I can't stress enough how much it sucks to this project fall. However, like some others have implied, the market wants what the market wants. Unfortunately, the market doesn't want this game, but I think that game hindered itself from the get-go with it's story.