Ok, sure, we got an explanation for that certain element in the show's setting, but the characters' goal remains unanswered. And then there's the issue of them being unreasonably annoying at certain points of the episode for no practical reason. Oh, and another convenient "twist" just happened to pop out of nowhere. I guess we are at least given a rundown on the current situation in their world, which is clearly a facade for something sinister underneath.