This was NOT a classic runaway, the runaway did not follow the continuous expectation, it only began after a 5 second period from a manual trim input, then stopped as soon as the trim switch was moved for another 5 seconds.
I am sure the shaker and warnings were very distracting. Just as they were for the crew on the previous days flight who landed safely.
The basic point though is surely, the trim is running....I want it to stop.....I will turn it off Bloggs unless you have a better idea....... No it is not a classic sim failure, single problem, linear solution now move on to the next exercise. They had the aircraft more or less levelled off then lost control. Got tired or swapped PF?