Well, if this game doesn't produce the "bestiality" content you are looking for there are technically other developers out there that are doing stuff like this. ie The Rack 2.
As for the whole argument about bestiality in games, is the same argument used for necrophilia or pedophilia in games: If a politician, who doesn't play games or understand video games sees that content in a game, they'll think its real and the people who engage in it or support it are monsters (figuratively). So, the reason Patreon cannot allow it is because governments would ban Patreon in their countries and they'd lose massive amounts of income and large amounts of their potential markets. So, even if Patreon itself has nothing against bestiality in video games, they aren't going to risk their business model allowing it, so to be safe, they ban it. I don't find bestiality all that interesting myself, but each to their own. I got my fetishes, and others have theirs. No particular weird fetish should be banned in my opinion, but I can understand why Patreon does it.
==================
EDIT: I think that most people don't realize how expensive game developers are, particularly good ones. Here is a website showing a breakdown of average yearly salaries for program developers (both software, firmware and game developers are lumped together for reference) =
You must be registered to see the links
In Germany, the average yearly salary (note salary not hourly) of a developer is roughly 54K USD. Divided by 12 months, that is $4,500 monthly. I believe they have said that their team is what 11 people? So monthly costs for just labor is $49,500 USD. Then you have to factor in other monthly costs; renting the office space, utilities for the office space, internet costs, spare cash in case a computer fails, costs to backup data (to avoid losing all your progress) and a bunch of other things like cost to stock the office fridge. So they could easily be eating up 56-60K a month. That is of course assuming they are paying at the average and not paying higher than the average.
And this is the low end of costs. If they were in the USA, the average developer costs about twice the amount of a German developer ~ 107K USD salary.