I've done the approach on many occasions. The VOR13L can be flown as an RNAV approach in the B777 (LNAV/VNAV). I think form memory the MDA is 800'. From there I disconnect the autopilot and manually fly the approach inside the aqueduct and over the Hotel. Allowing for wind and inertia, it can be a little tricky. My guess is that the PF has disconnected the A/P and increased his/her ROD beyond the normal 3 degrees to the point where a missed approach was the only alternative. I'm pretty certain that if the "John Deer" can do it, the A380 can do it managed.