One airline drilled one going into London a couple years ago- that one was powered by Rolls- they found the fuel filters were collecting ice and they ran out of power short of the runway. They fixed that problem.
The one in SFO, from the video and all of the pictures, looks like they got behind the airplane and tried to go around too late. Smacked the tail on the breakwater, ripped it off, and went downhill from there.
SFO was powered by Pratt's. Whole different way to get to the same place.
Either or, the certification is, IIRC, 8 seconds from flight idle to takeoff power. When they realized they were to low, they didn't have 8 seconds left between them and mother earth.
And I wanted to say thanks to the guys in Seattle- had a nice visit with all of you!