It's an iconic event and location. I'm not sure it needs much more explaining than that. We've been at virtually all of them, or some reasonable facsimile thereof, throughout the game so far.
So was the fall of Durin's Bane.
So was the breaking of the Fellowship.
So was Frodo's escape from the Black Riders by crossing the Brandywine.
So was Aragorn repelling the Nazgul on Weathertop.
Lots of "iconic events" for which our characters weren't present, and surely more to come.