I am astounded by some of the continued comments about the take off. Some people obviously have agendas and are unwilling to allow facts and knowledge interfere with them. He does not seem in any way confused here.
To be as clear as I can, as a pilot who was on a Hunter squadron many years ago, and was current Hunter until this accident happened, the information available about the take off rotate technique seems perfectly normal to me. He did not apply a technique applicable to an airliner, JP or light aircraft. It was the correct Hunter technique. Including raising the nose speed.
Perhaps, just perhaps, that is why the AAIB has not made a meal of it?