Just popping my thoughts in here after reading through the thread.
I have had fells go wrong in the past but not on this magnitude (fence panels being the main suffer). Now I have learned from previous mistakes and like the think I am a more competent feller nowadays.
However I recently did a bit of forestry work and worked with a guy who was a grade A tree feller, every single tree bang on the mark, if there was question to if a tree would go in the intended direction I was sent up to take back weight out to make it safe. This made me realise how bloody skilled some of you forestry lads are. Someone put up earlier that only a handful of tree surgeons are good at felling and after seeing this guy work I'd say your probably bang on the money.
The problem is the bare minimum is to have the CS31 and that's what people get to get a job but never take it any further (CS32/33 etc). I have felled trees that are larger than 31 regs but not when there are things in the way.
I agree that it is likely that these guys were under pressure to get the job done which is why the risk was taken, if been in these situations in the passed when you have to rush to get a job done or expect a rollocking from the boss, and it's horrible. But that being said I would have refused to do that tree within those conditions and would not have put lives at risk like that.
You heart sinks when you see a branch or a whole tree go towards a fence panel let alone if a 80ft 3 tonne tree fall towards members of the public and parked cars.
I obviously don't know the situation but am pleased no one was hurt and if the lads involved can honestly say if was a huge accident then I real feel for them but if they knew that that outcome was a likely scenario then why take the risk.
It certainly should have been cordoned of though.
My 2p anyway.