"The landing pilot was possibly not aware that the departing aircraft was operating from the former helipad as he is not looking in that direction. He may have been looking at the new facility to sight the departing helo as he would have heard the departing helo's radio call."
....It's not a former Helipad though, my observations are it is the boarding pad, at least before Covid it was...I frequently witnessed it. At first glance, and the footage now released, well, it's hard not to conclude that departing failed to know where incoming was, not sighted certainly!?
but thats my 2c worth, based on nothing more than experience and the footage released to public....lets see what ATSB says in 18 or 24 months from now...