The fuss over his "Referee not a coach" comment was a bit weird, while it was funny, he was being asked a question by Haskell which was a follow up to what the referee said before that about when the ruck is formed.
It was a really hard game to referee, and I think once England started turning it round on italy, Poite lost control a bit of when there was and wasn't an offside line. I saw him at one point signal a ruck and offside line, then Italy players ran away and into the offside, and he called Tackle only. It's no wonder everyone was so confused.