You forget - it was also nice that the Germans forgot to keep bombing the radar stations.
But the whole idea of the battle of britain being vital to the defence of Britain is a war myth. It was useful, but Seelowe was doomed even if the Germans had not invaded russia, and had spent four years building landing craft. Let me explain.
Four years later, D-day was sucessful against fair german opposition. The germans had little air-power in theatre. They had no heavy mobile armour near the beaches as we know. But the allies weren't facing two hundred destroyers, twenty odd cruisers, twelve battleships - do I need to draw a picture here? The Wermacht would have been fishfood.
I don't buy that. Without fighter resistance, the Luftwaffe could have bombed British cities and industrial centres to smoldering heaps.
I'm not talking about conquering Britain, I'm merely talking about destroying her, both as a fighting force and even as a useful base for future Allied operations.
But a successful landing and invasion of Britain? No. Not by Germany. As you so perceptively point out, the Kriegsmarine was no match for the Royal Navy...the KM was no match for half or perhaps even a third of the Royal Navy (I don't know the actual numbers).
Well, I meant to reference that in #53, how the LW switched from military to civilian targets in a fit of pique, and further how the Germans never seemed to understand the extraordinary strategic value of radar-enlightened fighter deployment.