You guys are missing the point, the rule was changed because of Marino, he torched the league in the early 80's , even today you can't interfere touch or reroute the receiver beyond 5 yards of line of scrimmage.
It clearly proves you don't understand the rules. What year it was changed, I cannot recall, but believe it it was in the 3rd or 4th year of Marino's career.
Back then, if you touched or rerouted a receiver beyond 5 years, you were flagged, so it favored Dan Marino's quick release.
I know what I am talking about.
Here is the rule you bring up:
1996
The five-yard contact rule will be enforced more stringently.
Hits with the helmet or to the head by the defender will be flagged as personal fouls and subject to fines. This is being done to protect the offense, particularly the quarterback.
When Marino played early (83-84-85), no contact could be made to the wide receiver beyond 5 yards.
Marino's greatest year was in 1984, you guys are misguided thinking it was changed to give Marino an advantage.
Also, Marino was dafted in 1983, a rule change favoring your point in 1996 would have made him a lot better, and it did not.
They changed the rules, to stop Marino.