This VN has a lot of girls, some of them are side-bitches you don't see very often, some of them are friends, and some are family members. They all have a different pace of developing and accepting romantic feelings for the MC. Even in MC's own family, Kat and Liz got on MC's bone-train pretty quick, and now Amy is slowly starting to see MC that way too; Nana is not far behind her.
Usually, in incest VNs the family members always get content later than others. because it's not easy to overcome that subconscious mental barrier of seeing a family member as a potential mate, not to mention the societal pressures of incest as a huge taboo. And to this VN's benefit, it already has some with a few family members. It's difficult to find a right pace of developing relationships, especially Incestual ones, without felling too contrived and dispelling the player's immersion in the story and its characters.
You can't please everyone, and not everyone is right. But, Moonbox is doing something right, because they have 546 supporters on Patreon alone, and have met all their funding goals to be able to focus on this VN full-time. This VN's quality is good, its update size and frequency is one of the best on this site.
People who can't accept the way things are progressing, should move on to something else, and stop wasting their own time. Cause this is a pirate site, if you want your vote/opinion to matter, support the dev financially, contact them directly, and leave your feedback on the relevant platforms. Or stop giving them money if you already are. It's your time and money, no one is telling you how to spend it.