I may have been a little rash suggesting he'd put out a call - - there's a garbled, stepped on call just prior to everyone going around. The Asiana does call short finals - it's just after that. Prob not related, apologies.
The lack of landing aids sounds "exciting"....
The garbled call sounds to be another controller in the background saying "what's that over there..." In the background as he apparently starts seeing the crash in progress which immediately cuts off the transmitting controller who then must be looking too. Following a pause ATC starts sending everyone around.
Lack of PAPI and GS in beautiful VFR causing a visual to be a complex maneuver in particular in a modern glass cockpit aircraft with a trained air carrier crew is laughable.