As someone else suggested earlier, but now I can't find it, it looks to me like they possibly climbed vertically and backwards then attempted rotation - with a reasonable tailwind.
Had something let go at that power setting in essentially an OGE hover, the immediate 'snap rotations' would be more evident I would have thought. The rotations came on relatively slowly I thought - consistent with running out of T/R authority. Started spinning with no T/R authority - dumped the collective and never recovered.
Did we get an answer how a potentially heavy AW169 behaves in a high power OGE downwind hover?