Most developers on Patreon survive by the people giving them money, so, if they give you lots of money for certain content, most developers cave even if a fair amount don't want it. Even if they add a vote, and the vote is still in favor, there is always a chance it backfires, which it has on some developers.
Once the release hits more Patreon's and Steam (which looks like it hasn't been updated since January) we shall see if there is any fallout, after all, I'm sure the developer doesn't give a shit about what people say here.