Mostly, to put it lightly, because of some very sad people. This lead to Patreon playing the game and they came up with quite a list of things that had to be changed which to this day I don't agree with.
Corruption = no consent = rape.
Emily, Mia and Nina were seen as loli thus being underage.
Mc was an adopted orphan but that still counted as incest in their eyes.
If they actually applied those rules to their platform, half of the games on their website would have had to be kicked off Patreon.
Simpy put, they demanded we remove half the content and change many of the characters which is just crazy. Instead of changing the entire game, we abandoned Patreon and went for Subscribe Star instead.