I'll just jump in carefully here and state that without a doubt, rule books in this day and age all carry the disclaimer that whatever the interpretation of a rule, that decisions will always favor the "intent of the rule." It is not unheard of to read that a decision was made and that while a specific rules violation cannot be cited, the infraction violated the "intent" of the rule... such and such. There are even cases where there is wording to the fact, "if something is not address within these rules, it is illegal."
It's their ball.
JT