There are a few things that I think should be recognized:
1. We are on a minecraft roleplay server.
2. We are all trying to have fun here. (emphasis on "trying")
3. Selective enforcement of vague rules will almost always feel targeted, especially when the community is small and interconnected.
I agree with those that say CAs have consequences, and CA holders should be ready to face those consequences.
That being said, I think we often double down on these types of punishments purely for the sake of argument or proving a point. What I think is the issue is that ST could have so easily ruled the other way. What harm would it have caused for ST to give a warning? For ST to have sent the druids in question a message saying - "Please do Y or X will be your consequence".
Obviously, nothing requires ST to behave in the aforementioned way BUT I think there were many ways to handle this that were more amicable in nature. That showed that ST are here to work with and promote fun in the community.
TLDR: ST could have handled this better. Lets promote fun. It was not important for the community to force PK these players, it was a deliberate interpretation of the rules for an outcome (whether ST desired it or not).
I HAVE NO SKIN IN THIS GAME I JUST LIKE TYPING