I ate there during my May 5th-13th trip. The waiter said the only restriction was sushi could only be ordered as an entree (not an appetizer). Other than that there were no restrictions. I had heard before I left that the Wolf steak had been removed from the menu, but that was not true. FYI: I ordered mango tea, artichoke dip, Wolf steak, and cheesecake. It was one TS credit.
The only thing is, the total showed up as only $37.00 for the whole meal (FYI--the stealk was $30.00+ just by itself). I asked the waiter about it and he said that since they are not Disney owned, that $37.00 is all they are paid by Disney (and that includes the waiters tips). I told him that wasn't fair as the waiters then get stiffed on their tips, especially since most people didn't know that. He insisted it all worked out and not to worry about it. I left him extra of course, even though he insisted it wasn't necessary. I don't know how much of that $37.00 the wait staff gets, but anyone eating there may want to carry some extra bills to make sure the wait staff gets their correct tip.
As far as the CS WGP goes, it's the one that has restrictions. I ate there twice that week and was told both times, no meatloaf and no (I believe) ravioli.