When I say "bad" about cruise line food I am referring to the quality of the food. I have said "bad" before to kitchen employees in reference to ingredients though. "Dump those onions off of the make table, they are bad".
One thing (of many) that impressed me as a former restaurant manager with Carnival last year was they had grilled Mahi-Mahi listed in small print as available on request on the casual lido dinner buffet menu. I requested it; a crew member with a chef type uniform came out from the back and put it on the grill. He repeatedly checked it with a thermometer before plating it as done.
I think that was best Mahi-Mahi I've ever had. Of course the outdoor seating with a gorgeous view of Atantis all lit up at night, and chocolate melting cake for dessert didn't hurt.