Hmm, you're right, my manual says that too. Must be a misprint. I agree with the OP, I prefer 5 and 10 mph. Actually I would call it 1, 6, and 11 instead of 0, 5, and 10 based on how it works, but that's just "splitting hairs" .
Yeah, I hope there is a 10/11 mph option when/if the diesel comes out.