User blog comment:TruisticWharf/Map of dunwall/@comment-1500935-20160301193418/@comment-16533050-20160302215117

According to Sebastian Mitten:

"In this case, we had to cut a mental institution which was haunted by some locals called Lunatics. I really liked the mechanics of those non-fighting guys who are really sensitive to sounds, and who drive the player into a corner, hooting when they've detected you."

I mean, yes, the institution could have been bigger, but it doesn't necessarily state the main focus of the mission was the institution itself.