I know what I like. I use their qualitative descriptions as much as I use their quantitative rating. I thought I didn't know what I was talking about. It gave me pause, but a second tasting confirmed my earlier opinions. My palate may be flawed, but it's the one I have to please.
Wine tasting is a subjective art.
There is no right or wrong, only opinion. But not 12, which is a fundamental change in their perception of the wine. Professional tasters are theoretically making an objective evaluation of the wines they are tasting. Twelve points' difference doesn't fit the theory. There's no accounting for taste.