That is a good educated guess...
But, past experience, and some patters, seem to indicate that it could very well be Coz....
I am thinking that not that many people would place a second formal night as a huge priority?

I don't know if the OP would want to do the Balcony Dining while at port????
I would be interested in scheduling the Crab Shack on that night.

Do make plans for the Balcony Dining as soon as possible upon boarding. I have heard that this is limited to a certain number per night... as the staff has to be allocated. I am the kind of person who likes to have that kind of thing all set.