You don't honestly see a difference between resisting a Judge's games and finding and destroying their keystone? We do the former all the time, even if we could only have done it to such a degree with help. The latter would show we had a lot more power than King expected. It... it's like finding a raptor when you expected a purrwisp. A purrwisp can kill you, but they're mostly just irritants. A raptor is a dangerous animal.
It doesn't have to be. Let's say Sion visits Corvus to talk to people there, since he has a friend on that team. He can tell anyone there what Canis knows. Then... I don't know who Lynx or Corvus are friends with, but let's say Lacerta is called for a heart run. They pick up the information then. It's slow, but it doesn't involve a change in behavior. Just remembering to mention things.