Dr Redford is taking a simplistic view of a subject that is anything other than simplistic. His 10 years in the RN and academic specialisation in naval history give the lie to his ridiculous assertion that the RN has an army and an air force.
They no more have an Army than the RAF Regt constitutes an army nor the AAC constitutes an air force.
Ergo he has an agenda. He wasn't one of Sharkey's accolytes was he?