thats really unfortunate, Incest content is amazing, They could just make it optional Like Lewd Town Adventures did.
Is not like they couldn't, but there is a risk involved, Patreon reviews these games from time to time(based on notoriety it seems), even if it's hidden, optional, and in some cases, just alluded to, if it offends someone at Patreons special snowflake morality council, they will give you a warning, and if you don't obey, you'll get banned.