I have never eaten there on the dining plan, as I don't use the plan. This is what has been reported, and it has been reported consistently.
You cannot order sushi off the separate sushi menu but you can get it as part of these combination plates:
Bento Box
A combination of Japanese tasting dishes served with miso soup and steamed rice
Sakura - chef selection of Japanese mixed grill, braised pork, California roll, tempura shrimp and vegetables $25.95
Fuji - chef selection of sliced sirloin, sashimi, California roll, tempra shrimp and vegetables $27.95
That's how they were getting sushi. But by all reports, ordering individual rolls, nigiri or sashimi from the sushi menu is not covered by
DDP. It's always possible that they have changed things but I have not seen it reported.