That precedence occurred because that's how the game was played, even now they can see some of it happening decide not to penalise due to the precedence.That precedence only came about because we couldn't spot all of the fouls. Now we can do that, we can apply the law properly.
Let's not forget the added bonus that VAR will relegate Leicester and end the career of Andy Carroll (if he hasn't done that himself by now).
Either way it's changing the game, I don't like it, i like the battles within reason.