I have heard this before as well. I am celiac which means I have to eat gluten free. Apparently, Blu and the main dining room tend to have more variety in GF choices. I was told by another celiac cruiser that Luminae will gladly get me anything I want. However, I have already gone through all the menus for every restaurant for the entire week and created a spreadsheet aggregate of what my options are. That way I can let my waiter know early that I may be deviating from the menu.😉 If they can handle high maintenance dietary situations, I’m sure they would be happy to grab an entree from another dining room if you requested it.