It's that big.
"I'm askin' you to obey orders in the dark.

If you don't know any details you won't be mad, and you won't know who to be mad at; so you won't jump in to save the day if I fail to come through with my end of it on schedule, and get yourself killed off.

That ain't all, either.

Your face always gives you away; if you knew all the very shrewd people I'm buckin', you'd give 'em the marble eye, and they'd watch you.

Not knowin' 'em, you'll treat 'em all alike, and you won't act suspicious.
"Listen now: You drift out quiet and go down on the Gila, somewhere between Mohawk Siding and Walton.