I particularly noticed:
From around 1250 BC onwards, post-Mycenaean ‘refugee’ settlements began to appear, establishing a pattern that was to continue throughout the Dark Ages (Whitley 2011: 77-78). The characteristic Dark Age remote, defensible positions, often over 500m above sea level – as in evidence at Karphi (ibid: 78) – exhibited a continuity of older traditions and no obvious change in population levels (ibid.).
This pattern was noted by Robert Drews in The End of the Bronze Age as evidence that the disasters in the Eastern Mediterranean c. 1200 BC were the result of human action, not natural causes. The only reason the survivors would rebuild in such difficult locations is fear of an attack by raiders or invaders. See also my post on From Bronze to Iron.