Not really fine print (emphasis mine):
Purchase a specialty restaurant dinner cover charge during the first or second night of your cruise and enjoy complimentary dining for the second guest. Valid for dinner reservations on the first or second night only. (Excludes Celebration Table, Chef’s Table, Empire Supper Club, Hooked, Izumi: Hibachi/Teppanyaki, Omakase, Izumi in the Park, Johnny Rockets, Playmakers, Portside BBQ, and Royal Railway)
https://www.royalcaribbean.com/content/dam/royal/resources/pdf/crown-and-anchor-society-benefit-grid.pdf
I realize as stated above this is not always enforced.