So he violated a rule, and accepted the penalty given out.
Seems like the rules were applied.
“*In the case of a serious breach of Rule 1-2, the Committee may impose a penalty of disqualification.”
“Note 1: A player is deemed to have committed a serious breach of Rule 1-2 if the Committee considers that the action taken in breach of this Rule has allowed him or another player to gain a significant advantage....”