Idle curiosity-driven quick question - having watched the video of the ANA 787, is deploying reverse thrust on the engine in 'distress' standard procedure?
not sure about "in distress"
For this specific incident, I doubt the engine was in distress at the time of landing.
being an advanced engine design It could have been retarded to a lower power setting and would still be useable at reduced thrust or simply shutdown by the pilot.
The pilot has choices but would typically react according to his training/SOPs