The point is that commercial success in a variety of industries is a result of a variety of factors, product quality is frequently not the most relevant.
That is: a restaurant owner can correctly say that another restaurant has excellent food and service without that being an endorsement of the restaurant's ability to survive as a business.
I would disagree with the loose correlation point. Although it's just one component of a restaurant's broader strategy for success, quality is undoubtedly crucial. While in Times Square, I would doubt you would blindly choose any restaurant without considering food and service quality.
Also, I would say that while a restaurant owner can correctly evaluate another, it's not necessary implied that specifically an award winner has proven that the unbiased opinions of others put them in this position.