Again, Jose, what you say is true, but the two cases are quite different.
The numbers derived from a student taking a test are objective. Given the answer sheet, anyone can score the tests. Even though the score does not tell us which questions were answered rightly or wrongly, the answer to any of them is objectively right or wrong. The score is taken as a measure of the student's overall competence.
But with a wine, we are dealing with entirely subjective factors. If we take 20 wines before 200 judges, what are the odds that the wines will score the same across 200 judges? Nill! It's ENTIRELY subjective. The notion, then, that the score can be refined to single-digit accuracy in a scale of 1-100 is preposterous, absurd, and harmful. THAT is why I oppose such things in principle.