Agree the sheriff shouldn't be speculating causation to the media. But he wasn't the helo pilot, I believe..
The helo pilot, don't just automatically assume they don't know anything when it comes to common stuff, such as WX. Weather affects airplanes and helicopters, and their pilots, the same. Everything from physiological such as spatial disorientation effects, to aerodynamic such as icing. It's a common thing to aviation in general, not Category specific. So one can comment that "I probably wouldn't have been departing in those conditions," and they'd most likely be correct regardless of what they fly. Whether or not that was directly causal would come out later, sure.
All I'm saying is just be careful being too critical of someone when you yourself may not be aware of what it is they know when it comes to their IFR ops, and respective capabilities and limitations. Probably would've been better to just ask "hey, would a helo-only pilot be qualified to make X judgement?" And you would've learned something new.