Zalt, thats because the AAIB had s little to go on. How do you prove a negative?
It's another case of a low hour PPL getting into IMC in a helicopter thats not designed for it, and things going very, very quickly to rat****. Even his instructor warned him he was getting outside his experience envelope before his fatefull day.
The guy may have been god on a 'bike (and he was, IMHO) but that isn't related to the facts.
Rotorspin and Whirlygig are, as usual, spot on, if a little blunt with it.
If he was Joe Bloggs, fresh PPL, would this enquiry be getting held? My moneys on a no.