They can not really act on patches, as long as the Patreon version is "clean" and other websites that may have unwanted content does not directly link to Patreon its "safe". A good example are Bethesda Games, they get modded to hell with a lot more crazy things. And funny things. And crazy funny things.
Here's the message that was posted in October when things started to become serious.
From
You must be registered to see the links
patreon page:
"Here is the excerpt from the message sent to me from their staff regarding the new guidelines:
"To clarify, if there is an optional feature in which a character could engage in incestual or non-consensual activities, then the player would still have a chance to view and interact with content that is considered to be a violation of the guidelines.
If this feature were to be removed from your game so that there is no mention/depiction of incestual or non-consensual activities, then it would fall within our guidelines. This extends to all content on your creator page, direct links that lead to this type of content, and other platforms showcasing work funded through your Patreon. "