It's true.
But potentially misleading.
Gimme a sack or effecting the QB, every time. I know the argument of you can force a bad throw INT and a hit after the release still pays dividends. But a sack creates very low % down and distances, many times create fumbles/scoop & score, and can knock QB's out of the game. Also creates more doubt and indecision for the QB, OL, and OC than just effecting him. Just my 2 cents