I think it is quite nice, especially with the 500th anniversary of the Reformation. Since it is outside and not inside the church, especially near the altar, I do not have an issue with it and would not consider it close to Luther Worship. As for a lock....many medieval church doors did not have an obvious lock, although they could be locked from inside. Come to think of it, most of the paintings I have seen of ML nailing the theses depicted the door without a lock and most of the medieval church doors I have seen did not have a "lock" as we think of them.