North-South were playing a short-club system with transfers, transfer advances, variable NT and a few other gadgets and in the previous few boards had had several auctions with multiple artifical bids, all of which had been alerted using the correct procedure of drawing a circle around partner's bid and saying "alert". It was apparent that East-West were not overly conversant with correct alerting procedures and the greater than usual frequency of alerting going on which may have left them feeling an obligation to make sure they alert anything remotely artificial. They probably play mostly in club duplicates with everyone playing plain vanila standard and nothing alertable ever cropping-up.
After North's second pass, East belatedly drew a circle around 2♦ and said "I'm not sure if I'm meant to alert this". South said "if it's artificial you should alert it". East said "it shows ♠ support but not necessarily a ♦ suit but ♦ will be her best suit outside of ♠". South said, "yeah that should be alerted - we should get the director as North might be able to get his bid back". North said, "I'm still passing" so the director wasn't called and auction proceeded. When the bidding came back to West, she was clearly flustered and asked the table "do I call the director when there has been a misexplanation" and South said, "just finish the auction and if your side becomes the declaring side that's the time to clarify any misexplanations". West then bid 5♦ and North and East swifty passed and before South had time to act, the director was at the table to report on a ruling from an earlier hand. South said to the director, "I'm going to pass, but could you have a look at this board too?" and proceeded to outline the facts noted above with East-West agreeing to what transpired. 5♦ made an overtrick.
At the end of the hand, the director was called back to the table (as requested when he was there a few minuted prior) and asked West why she bid 5♦. Somewhat self-incriminatingly, West said that after the misexplanation of 2♦ she felt she needed to jump straight to 5♦ as anything else could be misunderstood by her partner who thinks she has ♠ support.
The director took it away and returned after the next hand (last of the match) to report his ruling. How would you rule?