West was dealer with the hand shown. EW held the following uninterrupted auction:
1H 1S
2D 3C
3S 3NT*
4S
3C was not alerted, and was explained prior to the opening lead as "natural and forcing". There was a long hesitation prior to East's 3NT bid, agreed to by everyone at the table. The director was called to the table after West's 4S bid, and again at the end of the play of the hand. Declarer made eleven tricks in 4S; only ten tricks were available in NT.
The director ruled that there was no damage, because passing 3NT was not a logical alternative to bidding 4S, given that West had opened a weak distributional hand with a void. Polling other players would not have been a feasible option; it was a small club game and everyone had either seen the hand already or would see it in a subsequent round.
Thoughts?