Stator Vane.
Thanks for your excellent post that every PPruner should digest.
1, SFO is a challenging approach environment where recovery from ATC imposed high and fast positioning on finals to visual approaches is common.
2, Reducing speed and descending from above the glideslope in a 777 requires assertive handing. That's what they were trying to do but failed.
3, Blend into the complex mix the inexperienced Training Captain and ex Airbus trainee, and the recipe has been disastrous.
Those self-aware and honest pilots among us will remember times when they've been in close shave scenarios where they needed all the skills available among their crew to avoid a catastrophe. Let us humbly acknowledge that "There but for the grace of God go many of us".
It is now the time to wait for the preliminary NTSB report with keen anticipation.