I am sure there is food service during Ramadan. While there are many Arabs and Muslims in the hotel, there are also Westerners and Asians, so there shouldn't be a problem.
This hotel is amazing in appearance. I toured the hotel and a room last February and it by far the most exciting feast for the eyes that I have ever seen in a hotel. The rooms are huge and have amazing amenities ... although you would expect that in a hotel that has rack rates starting at over $1000 per night.
Meals are expensive, but not out of line for an over-the-top hotel.