SFFP
You have neglected one important finding of the AAIB - which was that the Chinook impacted at a speed of approx 150 kts. That equates to slightly greater than 253 ft/sec or approximately 80 metres/sec. The highest estimate of the visibility by those in the vicinity was by Mr Murchie (a Qualified Met Observer) whose estimate was "15 to 20 metres at most". That speed therefore gave them just one quarter of a second to acquire, recognise and attempt to avoid danger.
I must point out, however, that the assessed speed at impact was whilst attempting an apparent escape manoeuvre ; the speed prior to that attempt would of course have been greater.
Whilst it is apparent that a belated escape manoeuvre was attempted, that attempt was to late to prevent impact with the ground.
The Forecast weather for the Mull would have precluded flight in accordance with VFR. The actual weather at the Mull as assessed by 2 qualified Met Observers was distinctly worse than the Forecast. That assessment was reinforced by the evidence of 7 other eye witnesses.