I don't have any problem with variations. But I do think it's unreasonable to expect special accommodations to be made. If a show did that for one contestant, how could they refuse to do it for all? They'd have to exempt pork and shellfish for Jews and Muslims, beef for Hindus, peanuts and/or tree nuts for the allergic, fish and eggs for the vegans, dairy for the lactose intolerant, breads for the gluten-free and on and on. Contestants would end up having to prepare three-course meals with nothing but fruits and vegetables. And there's probably someone somewhere who's allergic to some of those.