SP25 - I reference this because it gives a clear picture of the crash site:-
Was helicopter in Norfolk crash that killed Lord Ballyedmond safe? | Mail Online
Now not being funny but that suggests to me that it was shunted within a few hundred metres of lifting. So did the weather really change that much??
To be honest its irrelevant because we have what we have.
The bigger point is that it is clear the CAA needs to get involved to better protect commercial pilots from the pressure to fly when it is marginal and to look at what flying is done into and out of private sites.