It’s better than what commissioning a monumental artist would produce: A couple of fake waterfalls with a list of names etched underneath, like the WTC memorial. Big boulder can later be replaced. Fake waterfalls are forever.
Looks like the “crescent” aspect was modified somewhat after opposition, but the original design was definitely presented as a “crescent” —
Critics See Symbols of Islam in Flight 93 Memorial Design
By SEAN D. HAMILL
Published: May 5, 2008
SOMERSET, Pa. — As envisioned by its designer, the memorial to the victims who died on Sept. 11, 2001, when United Flight 93 crashed into a field near Shanksville, Pa., would follow the topography of the bowl-shaped land, creating a circular pathway ringed by trees, all focused on the “sacred ground” of the crash site near the bottom of the circle.
http://www.nytimes.com/2008/05/05/us/05memorial.html