When Alexander Knox said there’s 8 sightings of Batman under a month, this scene makes both Batman & Alexander Knox an interesting characters that you wanted to know more about them.
We know Batman’s history really well. But what about Knox? Why so interested in the sighting of Batman? What was it that caught his interest for the first time? Did he really waited til the 8th sightings to finally do the story?
Well for whatever reason, having Alexander Knox in the film help make Batman more interesting. It would’ve been cool to see like a prequel comic that take place before the movie on some characters like Knox. 
