Good chapter. Of course, Harry made tactical and strategic errors -- for example, why weren't apparition wards in place except for designated spots -- especially for outbound jumps?
Harry being young and untrained in real tactics we would expect errors but that his post-op analysis consisted of pointless "woe is me" whining seems like backsliding for this Harry.
Scrimgeour needs a little explaining too. It seems doubtfully OOC that he would both believe Harry's information AND not strap him down for weeks while replacing Harry's blood with Veritaserum.
Still very good story and the only real problem is the abrupt ending and the long wait for a sequel! If each "book" is only one season will the series get finished?