Hi BOAC
Looking at the marks and furrow from the nosewheel, and the earth it has pushed up, it does look like a 'hard over'.
I would agree the NW seems turned considerably from the direction of travel.
However, the other hardovers are a known issue and I think it is "by design" it goes to 90deg so there is no steering effect, and happens prior landing.
Of course, a large deflection can also be generated without a fault... and the usual Hi Speed exit at CPH 22L does appear benign and then tighten considerably (ditto LHR 27L).
A personal bugbear of mine - colleagues under heavy braking and still with considerable G/S, starting the turn off. End result, if they misjudge it / it is more slippery than expected, is you neatly bisect the runway / taxiway and onto the grass. Rather than sorting the energy on the CL, and if it goes wrong, just take the next exit...
Not saying what happened here, but a "definite maybe" to me...
NoD