We have been here before, many times.
The lighthouse keepers, who were certainly close to the point of impact, were in IMC.
Mr Holbrook, who was close to the final Waypoint Change, was in VMC.
Wratten maintains that Negligence had taken place by Waypoint Change. If this was the case there was no evidence that weather was a factor in this Negligence.
The lighthouse keepers could not see the edge of the cloudbank, so there is nobody who can even confirm entry into IMC.