Hi Chris:
Welcome to the discussion and thank you for your as usual well-informed contribution. Of course I am well aware of the fact that the landing speed in a flapless landing is much higher than in the normal landing configuration Flaps30. I won't quibble with your numbers, although the actual figures aren't quite as bad as your estimates. By far the most important factor is the rate of descent at impact with the surface, with attitude a close second. Ideally V/S should be zero, as in a 'greased' landing on a runway. In the "benign seastate" that I mentioned the kinetic energy is of lesser importance. There is unlimited 'runway length' available to absorb it.