The Battle of Britain is perhaps like the question of convoys in WW I. The bulk of the professional officers wanted aggressive action with big kills. A few saw the nature of the problem differently. In WW I the issue was not sinking submarines, but getting merchant vessels to the UK with as few losses as possible. In the BoB, the goal was to not be defeated, to keep a defensive force in being, and to win in the attrition in pilots. Dowding and Park evidently realised that, but their approach was easy to attack.
But I thought all this was the standard account of the Battle of Britain, and has been so for at least 30 years. Does it need re-stating in the UK these days? (real question, not rhetorical.)