I had a long chat to one of the MPO supervisors about this a while back. If Jackywhatever wasn't a GO in the previous year (or gained SL with significantly more than 30k) then he would probably be downgraded to GR. But the fact that he was GO (which I assume was gained with more than 60k miles) I think MPO will softland him to silver this year as he is only 10% off 30k. It's no secret that MPO has been offering a 15% discretionary qualification discount to many of its members this year.

Furthermore, CX has been giving away SL for almost nothing. So to deny a current gold member a SL membership all because of 3k miles would indeed be a crime against customer loyalty.