While visiting Japan, Donald Trump was served a hamburger at a lunch with the Japanese Prime Minister. (See here.)
One of the halachos of bishul akum, the restriction of eating even kosher food which was cooked by a non-Jew, is that it is only a problem if the food is oleh al shulchan melachim, it would be served at a royal table (Y.D. 113:1). This standard has commonly been applied in modern times as that which would be eaten at a state dinner (see here for example).
Does Trump's hamburger mean that now hamburgers are subject to the restrictions of bishul akum in Japan? Does one ruler's culinary taste, particularly if it determined the menu of a diplomatic meal, affect the status of oleh al shulchan melachim?