When it comes to food --and specifically fruits and vegetables-- visual aspect is not a good indicator of taste or nutrition value. I would actually argue the opposite.
I would guess that the commenter who said that is making the statement that the US farming market touts visual quality because consumers look for visual quality and that is the reason for visual quality being a premium in the USA. Tomatoes being an example for this where recent years find the taste being almost absent but visual quality and uniformity of grocery store tomatoes being very high.