Your speculations about vault four, are let us say not entirely true. Most of fours lore was dropped in the commercial, recall the scientist that Coop talked too was named Hawthorne just like the medical center. It is Lucys finger. Lucy fails a sneak check.

Getting other people into shows is always a toss-up, especially if they're not familiar with the genre. I know it took me a while to get into Westworld and if I didn't know the Fallout games (but mostly Ella Purnell) I might have steered clear, at least at first.