Light winds, VFR, and kept on the a/p until 500'? I'm never impressed by guys that do that. It's like a 'tell' in gambling. From about 200' AGL on down the a/c trended higher and higher on both the PAPI and GS. FD commanding more nose down. Captain mentioned concern on flight path. The a/c never achieved a normal descent path even if it was already on a 'high' wire. At least that would have maintained the deviation from the desired path. Instead the trend was divergent, ergo the Captain's spoken commands.
It would be very interesting if the NTSB/Boeing had produced an animation of what the HUD and instruments had looked like on the approach. Instead of trying to flip back and forth between graphs we could have it presented in a visual format that would tell the story much better.