I think he is confusing it, but implying the steepness as ode said. The bounce lessens the dig creating the spin. I think a better statement that has been said is the steeper you are, bounce is your friend.
Also, any guy that can hustle people with a coke bottle tied to a broomstick is no slouch. Remember, "SuperMex" kept Nicklaus from winning 21 or 22.