That's kind of irrelevant, and unlikely. I think you're worrying too much. I'm sure they didn't want to ban cub porn. I mean, look what happened. If they didn't want it on the site in the first place, it wouldn't have had two sections devoted to it. They were practically forced into removing it by AlertPay. I think it's more likely that the site goes down all together rather than having any other subject matter banned.
It's relevant because vore, like cub porn, is a form of artistic content entities like AlertPay may choose to become offended by and demand removal of. It's likely because now that Dragoneer's caved once, it'll be easier for him to cave again, and AlertPay and its ilk knows it. It really is just a matter of time before they make more demands. However, you may be right in that the site may go down rather than restrict more content.
It can still happen with someone else FA's livelihood depends on. The government is failing to censor content which offends people, but businesses can do an end run around our rights; they own the medium, so they get to restrict the content. Make no mistake; censorship is always a bad thing.
There is a difference between censorship and a corporation that doesn't want to be involved with questionable material. They did not censor FA. They merely denied them service. They have the right to. The reason FA banned cub porn was to make it easier for them to find a replacement in order to continue to pay for their site. FA has the right to deny anyone service for any reason as well. Again, I'm sure they didn't want this, but they really have no choice. Artists can still host pretty much any art they want on their own websites assuming they can find hosting or host themselves.
Better ready the hide/block buttons, countdown to whiny cub/babyfurs bitching in the journal anyways in 10...9...
lol.