I have to agree with the other reviewers on this, it was a horrible episode to watch. Please read their reviews after seeing this episode, I'm just the warm up guy, they'll give you a much more insightful view on this episode.
Being in the UK I'm not 100% knowledgeable on Katrina, but by God does this show slam it in my face. The snippets of real footage sliced into the show really makes it a hard watch, not just in this episode which was amazing, but 1-4 also.
Apple TV are really cranking up the volume with some of their shows, this and the unique Severance (a must see) are my two stand outs so far.
I think the next episode will be another hard watch but as I always say in my reviews, we are blessed with some amazing TV right now and this show is right up there in my opinion.