I don't want to get into to it but knowing a bit about the Bible (I'm no scholar ) My disappointment was inaccuracies. Such as Lot's daughters (Google it). This small scene and story of Sodom and Gomorrah is the backbone of some Christians view of homosexuality. If you're going to bother with the story why not tell it right and let the people decide. The book is controversial by nature. I'm disappointed from a historical viewpoint only. I have no horse in this race.
I am not going to make a conversation/debate out of this, but just to enlighten you, anyone that has read the story of Sodom and Gomorrah would tell you there is no mention of homosexuality. Of this, I am certain. I do, however, agree that many use this story as a bases for their discrimination, but their argument holds no ground here.
I have not yet watched the episode so I cannot comment on the accuracy of the overall story, but there is no reason why homosexuality would come into play.
Anyway, thanks for the heads up OP!