Although Ayame and the others had already eaten before, the warm hospitality of Windesburg Hotel made it awkward for them if they weren't going to at least taste the food.
After all, Windesburg Hotel had prepared a lot of food for them and it would be a waste if they didn't eat any of it.
They were stuck between a rock and a hard place. One side was the butler's advice and the luxury cruise ship staff seemed to be doing their job to help the passengers.
On the other side was the staff of Windesburg Hotel whose hotel they would stay for a considerable amount of time. If they get on the bad side of them, it would be problematic for their stay here.
Because of that, Winston immediately activated his Eye of Insight and asked the guide and the staff, "Is there anything wrong with the food or not? Is it clean and what meat did you use to cook it?"