Quote Originally Posted by Narkis View Post
There's also a ruling that addresses this specific issue on Werewolf Ransacker, which has the same kind of trigger as Ravager.

It's not impossible that the judge made a mistake, or just didn't notice it. We are far from infallible.
For that specific ruling at least, I think it's in reference to the fact that something becoming a copy of Werewolf Ransacker doesn't cause the effect to trigger, since it's not transforming into it, it's simply entering the battlefield as a copy of it. If that copy were to later trigger it's transform ability, then the ability would trigger since it's actually transforming, even if it doesn't actually cause the card to flip.