Do you know if the scoresheets sent out from KC indicated a place or whether or not they advanced? A couple years ago, I got my scoresheets back early but they didn't have any mark in the place awarded box so I thought they didn't advance. It wasn't until Janis released the final results that I saw it did advance. Thankfully, I didn't drink the rest.
So if you get your sheets back before the final results, you may want to hold off drinking the rest of your beer until the official results are in.
I was not nearly as involved with this NHC as I was with last year's KC NHC or this year's KCBM XXXI. Last year at KC NHC, I was the head of the 'cover sheet gestapo'. I made sure that the stewards knew how important correctly marking the 1, 2, 3 on the cover sheet was to the entrants at the NHC Regionals. AFAIK, every person that advanced had it marked on the cover sheet.
This year, I advanced a lambic that did not have anything marked on the cover sheet. So if you entered KC this year, I cannot be confident that the cover sheet will be marked correctly. However, I have heard rumor that the AHA will be trying to release regional information a bit sooner than normal this year - so there's that.
As to the 'Nashville didn't allow anyone to know anything' quip, that decision is left to the site organizer, which is why some sites are different.