I'm sure you could find just as many studies proving the opposite. The human nose is not as bad as many people think. I've conducted a little experiments myself

I'm sure you could find just as many studies proving the opposite. The human nose is not as bad as many people think. I've conducted a little experiments myself together with four or five roommates. We first sampled four different red wines, then going at them 'blind' (not knowing the label) again. Me and a colleague got all four right, the others had two of them mixed up (always the same as I remember). All of us were completely untrained in wine testing. At least we could find good evidence that we were better than random agents, even though to do it conclusively the sample size would have to be larger. I think when you try to trick somebody into thinking a wine is something different from what it is, that's very much different from saying we can't tell apart wines at all.