There is no such thing as “vareital 
That’s right… yeah… that person or aggregation doesn’t exist.
Varietals are supposed to take different forms. Winemakers are supposed to be innovative with their translation of varietals. And, more crucially, all our tastes are different. So even if one supreme judge were to award “correctness”, it means nada if the consumer doesn’t agree.
We as consumers decide what’s correct. For us.