You can't take this list seriously. Cheddar has similar score as Gruyère. Or Norwegian Salmon similar as 'Fish and Chips'. No wonder English cuisine is rated so high there.
Almost all food is great if you get the proper high end quality.
What matters more in my opinion is what you can expect to taste most of the time. If you go to the supermarket or an average restaurant in a medium sized city for example.
As a pedantic Frenchman immigrant living in Norway, I would say that Norway isn’t the best about food but also not that bad. They have good stuff and terrible stuff like most countries and once you know what to eat you can live happy.
Generic cheddar isn’t usually considered for these ‘National specialties’ lists though. I believe the full name is West Country Cheddar, like how not all sparkling wine is Champagne.