Judges on cooking competition shows tend to be culinary royalty. Rarely, though, are they actual royalty. When Princess Salote Mafile’o Pilolevu Tuita of the Kingdom of Tonga swept onto the stage during the season finale of Pacific Island Food Revolution, several of the contestants looked ready to faint. But participants in PIFR aren’t called “contestants.” Instead, host Robert Oliver refers to the competitors, hailing from the Pacific Islands of Fiji, Vanuatu, Samoa, and the Kingdom of Tonga, as “food warriors.” Much like the show, it’s a title that seems lighthearted…