Well... If that happens to be the case I would understand to avoid the Patreon police... After the plot is revealed he wouldn't need it.
Anyway, it really bothers me Patreon is so serious searching about that content, while letting some devs literally scamming people... I would understand if a game did condone incest publicly, but as long it is fantasy... I mean, it's not like people around here would fuck their own relatives... right?...
But jokes aside, fantasy is a core of gaming and storytelling, if GoT was released on Patreon, would that be canceled as well? Time travel is also fantasy, it's a pillar of creator's imagination when writting a story.