It is ridiculous on its face because every large civilization used spices and salt to preserve and flavor their food. How would White people be able to make far reaching colonial expeditions without spices? Also, the taste of one's food from the perspective of a foreigner is meaningless in the grand scale of things. The only part that matters objectively is whether the food is prepared properly and if people are getting the proper nutrients in their cultural diet. Whether it tastes too spicy or bland is a subjective and trivial discussion. Cultural food cuisine is also important part of an ethnic groups identity, I don't know why we should adopt other cultures cuisines because our own food taste bad to foreigners. If our native cuisine is genuinely awful though there is nothing stopping us from coming up with new recipes.