I have got to believe you have some bad information, Perfectpocketz. I know quite a few instructors who were top money players in the 70s and 80s and all of them know the cue ball imparts English onto the object ball. In fact, they all know that the object ball imparts English on the first ball it hits, if still spinning.
I am sure, Scott, knows this too. When you say, "A lot of you are teaching that the cue ball has no effect on the object balls.", I would like to see some of these names. I don't believe any of them could be,,, "TOP",,, instructors.
I have a GC-4 in my game room and teach certain young players that I see potential in. The first thing I do is set two frozen balls up about 7' from a corner pocket, pointed to hit about one foot above the pocket. Then ask them if the ball is straight in or if not to show me how they would shoot the shot to pocket the higher number ball by hitting the lower number ball first.
A high percentage of these young players can string racks together yet, with ball in hand, will hit the object ball on the wrong side. All of the instructors I know will hit the ball on the correct side.