DNS, your math was trucking right along until the free fall thing...
The velocity of the object (in vacuum) would be 32fps after 1 sec, but the distance traveled would be 16ft.
A = 32
V = 32 x T
D = 1/2 V x (T squared)
Generally, though, we aren't attacked by free falling objects in vacuum.
Your other points were good.
People should probably practice defensive movement at least as much as fast draw. There are many more scenarios where defensive movement might be applicable.