very interesting but there doesn't look like to many ground obstacles for her heli to hit whist going sideways upon lift off
A rollover can happen even if the only obstacle is the friction on the ground. One possibility: (and I will add that there is currently no indication whether this is what happened here):
If the helicopters centre of gravity is located towards the rear limit behind the rotor mast, such as in a Longranger with no passengers, the machine will lift off the ground distinctly nose first. If this is done with too much haste, it could roll over backwards, and then possibly to the side once the tail skid touches down.
The impact photo is amazing, and a good reminder to us all what spectacular consequences even a small mistake can have.