What a confusing event descriptions
Lightning strikes don't wipe out engines
The only video I could decipher appears to show a mechanical failure (sparks) followed by a continuous surging and a very very long time to turn off the fuel and secure the engine.
Could be another one of those fan drive turbine failures (Ala USAIR B737). They probably burned out the whole turbine if you look up the tailpipe.
summary engine failure, air-turn-back, safe landing, scared passengers.