I agree to that quote, and, I think Dishes feel "inauthentic" when they taste not good, or considerably worse, like the BBC rice[1]. California rolls, Katsu curry without katsu - can't have issues with great food.

1: https://edition.cnn.com/travel/article/uncle-roger-rice-food...

ps: The conversation here brought up a question inside me regarding English tea and tea preparation; never had a cup of English tea better than the shot of best Chinese tea I have had in my life. Shouldn't it be considered inauthentic then?