All the above points leave out the factor that prevented pilots from hanging about over airfields across the Channel on either side, namely fuel endurance. At the time the BoB is representing, neither side carried drop-tanks. In and out was the order of the day, as well as the majority of fighters being restricted to either escorting bombers or intercepting them.
I don't have much problem with the idea of 'hit and run' sorties by fighters (and fighter-bombers) that hit airfields, factories harbours, trains and the like. The Luftwaffe used this tactic a lot - but they couldn't and didn't linger for long. Hanging around to "vulch" was an invitation to interception by scrambled fighters, as well as taking a hit from anti-aircraft fire. Any hit in a fuel tank threatened a swim in the Channel, or worse, and it just wasn't sensible to chance that.
So, I would like to see a setting that accurately portrays authentic fuel endurance relative to the map. But I doubt even that would prevent people from getting "arcadeish". Maybe just not award any points at all to those who don't return?
B