[soolee.]

There's a lot more than that. But no, sus isn't up to staff discretion personally. Because let's put it like this:
Staff A says it's allowed.
Staff B says it's not, and player gets slain.
Player reports Staff B and put Staff A as confirmation.
Then it becomes a discussion
And then it becomes a thing whether it's allowed or not.

Since your question is already answered by christian. So yes, it is kosable on overtime for sus on that.