Yup, due to skin effect the lightning essentially is guided around the airplane. Oddly enough it isn't that loud, it was like a champagne cork pop and then all the avionics power tripped off. A reset got it all on, no harm, no foul.True, but assuming that "current in" ultimately leads to a charge-bearing cloud or air mass, and "current out" ultimately leads to ground (or vice versa), an airplane sitting in the middle of the air is in a very different condition from an object connected in some way to ground.
That does not mean there is NEVER any damage. Fiberglass bits can be damaged, the radome if you have one is prone to that.
I heard of actual engine damage where the bolt struck the prop and the engine bearings were damaged by the current flow.
Radome taken out by lightning.