After reading through 82 pages, a couple of thoughts.
The amazing real time video shows the 777 scooting along the surface of the bay for some time before impacting the sea wall. Because conditions were CAVOK, it is possible that glassy water near that sea wall in the lee of the prevailing wind could have made it more difficult to assess how low they were getting.
Also, Pipeliner in comment number 1483 quotes studies that show 3 to 5% of approaches made by transport aircraft are unstable, and of these, only 5% actually go around!
And another thought. Listening to ATC in the US both as pax and as IR pilot,I feel that one who is not a native speaker would have to be bold indeed to say those useful words "Say again slowly!" and if asked to fly too fast for comfort, "Unable!"