There is a huge difference between windage and the crankshaft whipping the oil. Windage, the wind created by a spinning crankshaft, isn't usually the concern.
A grossly overfilled crankcase will have the oil level so high that the crankshaft is hitting the oil. This impact at very high speed can destroy engine parts. Or, it can whip the oil into a froth that doesn't lubricate well, and ruin an engine.
From the OP's description, this isn't happening. I don't promote overfilling, but in his case it doesn't seem to be a problem. If he'd like, he can remove his filter, drain it, reinstall it, idle the engine, then re-check the oil level. Or, when the oil is cold, remove the drain plug, let a pint out, reinstall the plug. I've changed plug gaskets this way and only spilled a few drops. You gott'a be quick with that thumb over the drain hole....