You forgot the third and most important group, the people who forgot they're even funding this game. You're right that it isn't a problem for Patreon but their lack of enforcing encourages this type of practice which I think we can all agree isn't a good thing.
No, I didn't forget them, they're the ones that don't care. I support a couple of content creators, one on YouTube and one writing a blog on historical event. I get a receipt every month, stating what I supporting and how much I have spent. If you still support something after getting a monthly receipt, then you don't care.
But I agree that it's not a good thing from the perspective of the greater good. For Patreon, however, all is fine since they make money and that's their only goal. The creators, that is Patreon's customers, make money. A majority of the patrons keep paying, meaning that they're at least not unhappy. I'm having a hard time seeing Patreon wanting to do something about a situation that might be bad, but still a situation few people who matter complain about.