He is right on heliski ops that you do spend a lot of time pretty close to trees when on the lower slopes ( below the alpine runs ). I have flown with a number of these canadian heliski pilots over the years in Whistler and Tiax and monashees and have never come across one less than AAA excellent . They are all truly superb pilots and perform impossible landings , toe in , one skid etc with 40 kn winds etc etc Respect !! He was there and did what he did and i can only imagine we would have all done the same . Flying out there IS different to what most of us experience and certain things are done which we wouldnt do ie sometimes you may have to get out and hot refuel yourself leaving controls unmanned ...there is no alternative . I never thought this was jack stall as i would only expect the cyclic to seize up and not the collective . I also believe it is a high G event and would not happen at low torque and lsing height .
At least it ended up happy !!