Thumpalumpacus
Major
How accurately can a German bomber hit its target from 22-24,000 feet? Even if the defending fighters can't reach the enemy at such an altitude, forcing the enemy to fly at such an altitude can be seen as a small victory, surely?
Well, no doubt the accuracy was pretty bad from those levels at that time, but that's where they were. And if you're the defending air force, do you want to procure aircraft that run out of breath up there?
You don't need tremendous accuracy to hit London, and that's the main air battle we're looking at in this timeframe.