I believe the “What if Napoleon had an A-bomb at Waterloo?” line was also from a SNL skit form the 70’s
Yes. This was the “What If?” segment. The Waterloo skit featured the interior of B-52 where they flip a few switches and pronounce the battle won.
My favorite was “What if Eleanor Roosevelt could fly?” I was amused by Garret Morris as an Air Force General commenting that, “... she would be extreeeeemly vulnerable to anti aircraft fire.”