The new 206's have had some engine problems.
Then there is the possibility of a fuel management problem.
But whatever the cause, engine failure close to the ground in night instrument conditions would tax the self-control of any pilot to avoid stalling the aircraft. The probability of a stall would increase if the aircraft were on autopilot during the approach. 300/2 is not a particularly difficult ILS, and it is very dark south and west of that airport. The runway lights are the only thing to see under those conditions, reducing the liklihood of premature VFR.
Been there [single engine failure close to the ground] in daylight VFR and the inclination to keep pulling back on the yoke is almost overwhelming.
But we'll just have to wait a year to have some idea of the root cause.