I'm sorry, it hasn't. It used to be simply that VAR had cut out diving.
After some high profile incidents a couple of months ago, you changed to no-contact diving. And you know as well as I do, if someone dives with minimal contact and the referee gives it, then VAR won't intervene. If the referee doesn't give it, VAR won't intervene. So what's the difference? It's up to the referee to referee competently and consistently.
As for no-contact diving, there have always been ways to eliminate that by punishment in-game or retrospectively. Again, it's a question of competence and consistency.
And, once more, if we learned anything about Oliver yesterday, it was that he can referee a high-profile game reasonably competently and consistently. Which is all we can ask for.