I think the bolded is just as inaccurate as the term "cheating the pocket". You're not using the 'whole pocket' when you deliberately increase the likelyhood of a bad shot my removing margin for error on one side. Using the whole pocket would be providing yourself with the greatest chance to drop the ball.Also, the term cheat the pocket is a misnomer. One is not cheating the pocket by deliberately aiming to send the object ball to one side or the other. One is using the whole pocket rather than just the center of it. Obviously the amount of room one has to work with is determined by the pocket size, angle of the cut and depth of the shelf.
Although I'm just as guilty as most with using the phrase "cheating". I generally pull it out when I'm intentional clipping the point in an otherwise direct potting angle.