Careful, I never said anything about Human/Pilot error!!!!
Ignoring the fact that the pilot was probably a human...
What professional would take off in:
ICING conditions outwith the A/C icing clearance;
areas of known LIGHTNING (or LIGHTENING (sic) activity);
with a forecast that suggested LINE SQUALLS and;
WIND SHEAR, using;
INCORRECT PROCEDURES;
not to mention not taking account of the COLD GAS FLARING;
or the RIG TURBINE EFFLUX
So, that just leaves incapacitation, then. Or birdstrike.
Sorted.