to me the title of an episode is meaningless. if they make an episode called The Doctor Eats a Sandwich i'd still watch. even if said ep had nothing to do with a sandwich.
It's not a question of whether you'd watch it or not. I just like titles to be a little more relevant to the story.
I mean, The Doctor could have been anywhere
when he received Clara's phone call. What is the importance of St. John?