I decided to watch the episode on the Bronze Age Collapse there and... I can't say I enjoy the "Grand Narrative" style of presentation all that much. With regards to that one episode in particular, the final segment on the effects of the H3 eruption of Hekla struggles with the chronology just not working correctly. The presenter gives the eruption a date of around 1100 BC, which seems to already be on the early side of dates (mid-late 1000s BC looks more reasonable), but if you're paying attention to the chronology, it's well after the Sea Peoples start showing up and the Bronze Age Collapse has occurred (~1200-1150BC), so its putative role in inducing the Sea Peoples to start their raiding would require a time machine of some sort.

The margin of errors when dating events three millennia in the past are quite wide. Besides, the large scale collapse of multiple civilizations can't be lined up in a row of neatly separated events. Why does this particular eruption need to be before the evidence of large scale raiding of sea borne forces?