LOL... Well it ain't the first time a magazine was wrong and I can absolutely guarantee you if they said that they are wrong, and so was the other person(s) that told you.
I've attached a partial scan from Larry Shepard's book entitled "How to hot rod small block Mopar engines"
The subject is about filing piston rings and if you notice right about in the middle of the paragraph in parenthesis it mentions all three rings and calls them out as top, second, and oil ring.