Buyers' palate

It would not be unreasonable to assume that people going to the Wine Fair to evaluate wines would have a certain sophistication of palate. However an incident at this year's Wine Fair would certainly make me revisit this assumption. I was at a booth tasting their various offerings when I thought their flagship wine a touch strange, to be truthful perhaps slightly corked. Sometimes there are problems with the glass (though I had tasted other wines from the same producer with the same glass without any problems). I asked to sniff the bottle and then the cork, but nothing definite was confirmed, by which time the exhibitor got ruffled. After some swilling and more sniffing on the part of both of us, we jointly decided that the bottle in question was definitely and slightly corked. He opened a new bottle and everything was fine, but not before he cursed the palates of the previous tasters, none of whom had picked up the problem!!