"So yes this COULD have been caused by CFIT but if it was then the initial ‘into terrain’ was only a contributing factor to the final impact and not the impact you see in the pictures. The end impact was a result of loss of control."
???
Not saying this is what happened but if an aircraft flies, under control, into trees then it is CFIT (That "T" is terrain which includes trees, walls, buildings, whatever else one may encounter on the ground). What happens thereafter is in the lap of the gods.
As for ATC contacting the emergency services, what if G-WAVS was talking to ATC and mid conversation the controller hears "...****, oh **** oh ****....(then silence)". do you think they will wait the requisite 1 hour beyond notified endurance before informing the emergency services?