Most probably VRS but a clear example of what happens if you don't get your power in early enough towards the end of a quickstop.
It depends when you think he ran out if power - was it before the descent started and he didn't have enough for OGE, drooped the NR and began to descend (SWP) or was it as he hauled in the lever while he had low airspeed and an effective rate of descent due to the flare which then led him to ingest his own downwash and develop VRS?
A bit of a moot point really - he just porked a simple manoeuvre very badly and was lucky enough to walk (or limp) away from it.