PJ2:
With the tremendous drag from the mains, I don't think that would be the case.
Well, if that's the case then you wouldn't be getting airborne again, would you? Combined with such a drag force, a stall would make your nosewheel come down closer to the ground leaving a deeper mark and possibly a gear collapse...
I am just trying to visualize the force diagram at the moment the plane touched the ground... Maybe I am getting old but what I see from those marks is what would be left off on the runway if you would be applying the "crab technique".